Well, I've finally decided to go with 10k rpm Raptors for my main machine. I'll be setting them as RAID 0 to boost the speed even more. Maybe I'll write a review on these drives for everyone. I got them from Newegg.com for $169.99 with free shipping, and then a $30 MIR to make them $139 each. These are the new model with 16mb cache. Although, I wish they'd have SATA2 models of these drives.