why are u guys sugesting raid? i thought u all saw the article that someone posted b4 showing bench's about how raid0 shows no or very very little improvment in a desktop user environment, compaired with a raptor.
faster rpm's only afect the speed at witch u can... install/load/save, that sorta thing. if u dont feel the price is worth the time in those fields, just get a 7200rpm drive. also if u dont care about crazy performance, a slower drive will last longer with more reliability.
if u do wont to increas HD performance though, the raptor would be better and safer then using raid0.