Welcome to LQ!!

Since this is not a Linux question, I have moved it to general.

Are you asking if you can install the Mac OS on your computer? No, I don't think so. Apple sells only complete systems.

is it a intel dual core mac or intel dual core non-mac (like hp, lenovo, asus, ...).

since macs use intel based cpu's they are regular pc's. you can install mac os on any intel based machine but they make it hard for you.

google osx86, hackintosh, psystar, ...

if you need apple support, they will probably hang-up on you if you mention you are trying to install it on a non-mac pc.

Not only that, but I think you'll be in legal trouble. I believe things like OSx86 and others are technically illegal according to Apple's EULA.

Apple is a hardware vendor that also happens to bundle their own proprietary OS along with it. If people started installing their OS on non-Apple hardware (freely, as in without having to hack it), they'd have some serious profit declines, because a lot fewer people would be buying their hardware.

I *think* the reason why you can legally install other OSes on the Apple hardware is because that's all software. In the instance of Microsoft, it would actually be beneficial to them if people started installing Windows on their Macs (through BootCamp or similar), since they're not primarily a hardware vendor. Apple isn't really hurt (much) in the process, because it's still running on their hardware.

Not that I'm endorsing Windows here, just giving an example

pystar has been selling them for basically forever LOL.

But if I remember it well pystar now lost his case in court.

Lost is an understatement.

You need to post more information on your system. If it is an Intel-based Macintosh, then yes. If it is not an Apple, then probably not. Telling us you have a "Dual-Core" system is not useful - I have a Dual Pentium Box (2xPentium MMX-200MHz, 512MB PC-33), but that will certainly not run Mac OS

i just remembered an article on digg that said the latest update made it impossible to install on intel atom based netbooks.
being that since apple doesnt make a netbook there sales would decline if people bought os x to install on a $200 asus eee instead of a $1000 mac book.

it probably has code that looks like:

By far it is easier to buy a Macintosh and then run the other operating system as a guest.

For one thing, Macs are a very good way to buy high-end computer equipment at a reasonable price with a three year bumper-to-hubcaps warranty ... and to look cool while doing it. If you want to run other stuff on it in a virtual-machine environment, "works great."

I'm not "just being an Apple fanboy" when I say that there's much to be said for buying a well-designed combination of hardware and (Unix!) software which has been engineered from the ground up to be just what it is. (And "cool" never hurt anyone, either.)

Now, I've got a bit of a linux bias here, but if you're not getting the really nice quality apple hardware, then paying money for OSX doesn't make sense, you can get most of what OSX offers for free with linux, and then you have no monetary or legal issues. Mac is a nice OS because it's optimized for their hardware, and it's quite nice hardware, but really, at its core it's just BSD with a shiny interface slapped on top... Linux has compiz, which is (IMHO) shinier...

I've read the "hackintosh" law suit discussions in mainstream press with interest. Apparently, OS-X is so good/hip/shiny, a lot of people want to run it without paying for the (overly?) expensive hardware.

Just as a matter of interest, how close could Linux (or BSD) get to OS-X using free software? And what would be the distro or tools to do it with?

Would a linux distro based on free software but compiled to emulate OS-X infringe copyright?

What did you like to do with OS x ?
With task should it perform for you ?

Let's look at iLife. Linux has f-spot or digiKam for management, and GIMP for editing. Can replace iPhoto.
Video editing: cinelerra if you need power, or if you want simpler, there's kdenlive, Avidemux, LiVES, and many others. I haven't used iMovie in a while, but if it's like I remember it, it's got one video track and can't handle clips bigger than 10mins, so these beat it off the bat.
Garage Band: there's LillyPad, Audacity, and Ardour, can do most of what garage band does. I'm not an expert here.
iWeb: kompozer, mozilla suite, there are tons of WYSIWYG editors out there.

Expose/dock/stacks: between compiz and your choice of dock (ie awn, cairo-dock, kiba-dock), all of these can be imlemented and further customized.

TimeCapsule can be replaced with BackInTime.

Anything I missed?