As for those who say Linux sucks... try upgrading your entire system, every single application, library, etc, all with one command. Try getting just about any program you'd ever need for free with one command. Try never having to pay for any software again. You'll soon see, that while Gnome/KDE/etc aren't quite up to par yet, it is a brilliant concept. Within two years, open source desktop environments will likely be right up there with OS X, and they'll have all the advantages I mentioned above to boot. Unless you are in a special circumstance (which I am unfortunately, although I'm working on the transition), or you really love to run commercial games (Fallout 3 please!), there will be little reason not to switch to Linux. Actually, in that last case, you're far better off with Windows anyway. Most 3D games run faster, and there is a much larger variety of software. Yes, I know we get probably more than half of the major titles, but if you love games that are a bit off the beaten path, such as some of the great turn based RPGs available for Windows (RIP Troika), it can be annoying...