I've had the IBM GXP60 40 GB, and currently I have a 80 GB Maxtor D740x. Suprisingly, I like the IBM better. Not only was it quieter, it was a little faster too (maybe cause it was smaller drive). The only reason i didn't get a 80 GB GXP120 was cause of the cost. I've also heard great things about the barracuda IV's.
