(edit: on second thought, I'll grab a fork and eat this can of worms in private)

Some rolling releases are better than others in my opinion(I won't name them, I don't want a flame war). It all depends on what you want. Do you want your box to have killer uptime and never get buggy then run a stable and or testing release that has had the bugs worked out of it.
Wheezy is a sweet ride at the moment.

I do not think it will create any flame war if you mention objective pros and cons.

The whole idea is to get a good, persistent, rolling-release Debian.

I read in a forum to have 'wheezy' in sources.list till it is stable, then wait for new testing to become somewhat stable and change over to 'testing' when you have some time to manage any errors/problems with switching. When new testing becomes frozen, again switch to its name and repeat the process. That way one can always stay with testing and have things under control.

You must not be a Linux flame war veteran.

Making sure Jessie runs after the impending large upgrade of packages when Wheezy goes stable is a good idea.

However. You won't know that is true with your install (packages that you have added) on your hardware until you do the upgrade.

A second, small install of Wheezy that has all your additions but basically no /home to speak of is a good way to know that if your main install of Wheezy is your production OS.

You said you tried Arch but it took too much manual interference to run it. I am not sure exactly what you meant by that but any rolling release is going to take a lot of administration on your part.

There is not going to be a rolling release based on Debian. That is because Debian is not a rolling release.

To have a rolling release the OS project has to be set up that way. You can make a snapshot type respin of a rolling release where the packages offered are "stable". You can't take a release set up like Debian and make a rolling release out of it.

I suppose you could come close to that with your own repo using Sid as a base and pulling in a lot of packages from the experimental repo but I doubt that it would ever be real reliable. It would also not be truly rolling as Sid is not.

It is basically in a freeze right now too. Right now it is home to, mainly, packages for bug fixes for Wheezy.

Basically either decide to use Debian for an entire cycle as that is the only way you will have any idea if it will suit you and your needs in an OS.

The people here in this section of LQ have, for the most part, made that decission based on themselves and their own need, or wants, from an OS. We can't make that choice for you.

You can either stick with it and find out how it works for you or keep hopping around and trying other distros.

If you have the drive space you can do both. But you are the only one that can determine what you want to use.

Distro Watch has hundreds listed and some info on every one of them. All Linux distros are not listed there. You can find more.

Have you run a search for rolling linux OS's? Might be a good place to start for you.

Thanks for a detailed explanation.

If you read the Debian wiki and some debian.org docs, you will see testing/unstable referred to as "rolling". This does not mean that they are actual rolling releases. Because testing freezes, and unstable also slows right down, roughly every two years, for a few months prior to a release, Debian cannot be considered a rolling release and was not conceived or designed as one. Distributions like Arch Linux who never release, but simply keep on "rolling" are (true) rolling releases. As widget has said, due to the nature of rolling release, i.e. the constant flood of updates, they take a lot of hands on micro management from the user.

I just upgraded my squeeze box to testing & I used
I tried using aptitude before using the above commands & the dependency check never resolves any issues

I noticed in your sources.list you have this line.
I thought in testing that it was not necessary correct me if I'm wrong.

From: http://ftp.debian.org/debian/dists/README
Hence, I have removed wheezy-proposed-updates and kept only wheezy-updates in sources.list ( http://ftp.debian.org/debian/dists/ )

I had earlier taken sources.list from: https://sites.google.com/site/mydebiansourceslist/

I am now running debian sid/unstable on a computer and regularly updating it. I have not found any difficulty so far with usual file management and office software etc. Which packages from the experimental repo should I install to make it better or more reliable?

Sid has been "frozen" for several months so of course you haven't found any difficulty. Wait until the freeze ends and it becomes "unstable" again.

Thanks for the warning. I will continue to keep my previous distribution as a backup system.

Packages in the Debian system start being prepared for use in Debian, as far as we the users are concerned, in the experimental repo.

They migrate to Sid when they are stable enough to go to the unstable Sid. Right now there are a lot of packages in experimental that are pretty stable as there is no where for them to go.

I use Xfce and have Thunar from experimental on all my installs because it is an improvement over the currently used version in my oppinion. I am sure we will see it pretty fast in Jessie once that becomes testing.

There has got to be a huge backlog of packages for experimental. I suspect, never having upgraded Sid when the freeze ends, that Sid will very rapidly become unstable as soon as things like Xfce4.10 are migrated through Sid and into Jessie.

I feel like I have a pretty good feel for the way testing is built having used it since Squeeze was testing. Looking forward to seeing how Sid behaves. I think I will enjoy it a lot. I also expect breakage.

This is not a system like Ubuntu has where they take a snapshot of Sid and build their regular release from it. Sid is being used by Debian to prepare packages for Debian testing. Debian testing has only one purpose in life and that is to become the new stable. Stable as defined by Debian is considerably different than the definition used by Ubuntu.

Even Ubuntu LTS versions are based on testing, not stable.

If you are smart you will have an install of Wheezy or even Squeeze to back up testing and Sid after Wheezy becomes the new stable.

There may be little bugs in them but they will work. Jessie and Sid are for people that expect problems to occure, know how to avoid them where possible and work around them when needed. Breakage will happen. In both of them.