Just to add my 2 cents here. I find my hackintosh to be incredibly useful. I run final cut, logic 8, and Pro Tools 7.4 on my hacktintosh. I'll admit they can be temperamental, but if you've got the skills to maintain one you can save a LOT of money. After all only one mac on the market will let me run multiple internal hard drives, a serious video card, and as a poor student I can't afford a $2200 mac pro. Instead I built a custom PC with an intel quad core, 6gig's of ram, 8800GT, two hard drives, and a DVD burner for about the cost of an mac mini......
Just use the bios hard drive selection window (F8 on ASUS motherboards) to switch between your PC drive and your mac drive.
(I did buy a retail copy of Leopard for this computer)
Likewise. The only bug I have on my Hackintosh is that Adium inexplicably crashes on it, but I haven't updated it since 10.5.2.