Thinking about gettin linux but I need to adress these issues
 

Ive been gettin kinda tired of windows lately and I was thinking of getting linux and I wanted to know:
How user friendly is it (im not a super duper pc geek)?
Can I use Firefox and msn messenger?
Is it easy to switch back and forth between windows and linux IE for games and stuff?
Is it iPod and iTunes friendly?
Will the folders I have on Windows (my pictures, documents, mp3´s, etc) be accsesible from linux once I install it?

User friendly? Yep, pretty much, although I'd recommend SUSE or Mandriva for your first distro :)

Firefox? Definitely. Will probably be already installed for you (distros, esp. the more complete & userfriendly ones, tend to have a large selection of applications already ready for you, unlike Windows where you get an OS and that's it).

MSN Messenger? Not the official version (Microsoft and all that) but Gaim supports MSN, and also AIM, Yahoo, etc. All in one buddy list, woot! It also will probably be already installed for you.

Switching back and forth? Yep, just install Windows first, and Linux (esp. the two above) should autodetect it without a problem and will give you both choices (windows and linux) in your boot menu. Additionally, you can check out Cedega, which allows you to run games and such natively on linux. I pay for it, and run World of Warcraft, HoMM5 and a few others on SUSE and Slackware.

Your Windows files? Yes, especially read-only. I'd leave it at that for now, although the 2.6 kernel (IIRC) supports writing to NTFS and is fairly stable with it.

Edit: Missed the iPod/iTunes question. iPod, yes, but a lot of the clients need work. I use a python-based one which is purely commandline; this probably isn't the preferred option for most people.
iTunes...not so much. You can run it through wine (Cedega), but it's probably still the better option to burn your CDs in Windows and rip 'em again in Linux. Particularly since it's unlikely that your iPod loading software will understand iTunes-formatted files.

Hope that helps! Let me know whether I should explain more; tried to be fairly concise to start.

[/QUOTE]]How user friendly is it (im not a super duper pc geek)?[/QUOTE]

There are many distributions aimed at new users wanting something simple to use, Mandriva, Suse, PcLinuxOS etc.

Yep, firefox is available on nearly all distributions. A sfor MSN Messener, there are numerous clients available, to name a few; Gaim, Kmess, Kopete, Amsn. None offer voice support as yet, but Kopete and Amsn have webcam support.

Yep simp,ky reboot your computer and it will present you with the option to load Windows or Linux, usually it defaults to windows after a few seconds if you do not pick one.

There is I pod support available, its simple to do if you use one of the media players that support the ipod e.g. Amarok or Banshee two name two. A s for itunes, there is no client available nativly for Linux, but if you run itunes through WINE it will work, although tis easier to use crossover office over WINE directly, however crossover office costs money.

Yes although you will not be able to write to your windows partition, but you will be able to read. This is assuming that windows is using the ntfs file syste which it more then likely will be, if it is using fat32 then you can read and write. Windows will not be able to read what you have saved on your linux partitions, without some work.

Michael.