I would use a raptor x drive for my main drive instead (10k rpm) = ) and vista 64! i love vista it allocates memory so much better than xp and way more stable i find... i dont reboot for weeks or crash. If your good with comps vista 64 way better. Although it does take alot of tweaks and customizing to get it running just the way you want, so i guess not for the computer faint of heart types