I teach a "Digital Arts" class at a private college. (Photo restoration and compositing, web page design, illustration, ect.)Anyway we use both Mac and PC. The Macs are G4s with 128mb of RAM and the PCs are equivilant custom built. There isn't much diffrence in performange, in fact I think the PCs are a bit faster. The problem is these Macs cost about $800.00 more than the PCs. There are also more subtle problems with the Macs like when designing web pages, the Mac "Web Pallette" colors are much more limited than a PC, makes designing a web page too be viewed on a Mac and PC a pain in the butt, so most people don't design for Macs. A Mac is only capable of displaying 72 dots per inch on the monitor where the PC displays 96, you get more detail on sereen. You can't build a custom Mac like you can a PC. Anyway, I prefer PC. That's my two cents.