Well, I have an aging system with an IBM 40Gb Ultra ATA 100 and a Western Digital 80Gb Ultra ATA 100 HDD. I don't need more space, as I already have 65Gb of free space. However, I am tired of load times. (With McAfee Shield enabled at startup, it takes like two minutes from pressing the power button to a fully loaded desktop). I am wondering if its worth it to spend $80 or so for a SATA HDD (I'm considering a WD Caviar SE WD1200JS 120Gb SATA II or something similar). Anybody know if that will help with load times? (Or will the performance increase be negligible?) Or should I try more memory? Thanks.