If you are looking for speed, I suggest the Maxtor Diamondmax Plus 2500 10gig. It runs at 7200rpm, and is alot quieter then my WD Caviar 6.4gig. The 2500 is every bit as fast as An IBM 14GXP, if not faster. I have seen some reviews that even have it outperforming 10000rpm Cheatahs in SOME tests. The best part is that I got mine for like $225. Just look at pricewatch.