actually, there are many different distributions of Linux, some of them very easy to use, others more difficult.
Unless you're a computer genius, it's probably a good idea to start with an easy distribution. From the ones I tried, both Mandrake and Suse are pretty straightforward (I had some problems with Mandrake, but I think it was because of something wrong with my computer). And they were so easy to install (they recognized pretty much all my hardware automatically... better than Windows!)
Linux does take some getting used to. Even with the easy distributions. It's not that they're really harder to use than Windows, it's just that they're different... and if you're used to one way of doing things with Windows, you might be a bit lost at first with Linux.
Good luck! Let us know how it goes.
I wish I still used Linux but unfortunately, I couldn't find the kind of DVD burning software I needed for Linux, so I had to go back to Windows