Sounds like a good point Direwolf. I do have an 18gb 10k u160 drive in my machine right now, and a 30gb ide drive as well. Unfortunately the scsi drive was bought used last year, and it is about 4-5 years old, and it's starting to make loud noises upon spinup and clicks often. I want to replace it before it totally dies on me! But would I get much of a performance increase from going from a 18GB 10k to a 18GB 15k? Probably the drive i have in here now is a first generation 10K, and the seagates I'm looking at are 2nd or 3rd generation 15K! Any drive I buy will have to last at least 2-3 years at the most. In terms of RAM, i'm pretty content with the 512 I have in there now.. The only thing that seems to be the bottleneck is the main hard drive! I can hear it seeking and moving its heads almost all the time when I transfer files, etc. And the IDE drive is so much quieter compared!