It's the holiday season and I want to upgrade my drives. Currently I'm running 4x 300GB VelociRaptors in RAID 5; they are pretty fast, but they are not fast enough to justify my current lack of space. I'm out of places to put external drives hence the wish to upgrade my internal drives. I have looked at a few options including the new 2TB 7200RPM drives that are pretty fast; however I do not need that much space; plus I care more about random access than sequential performance. So I have come down to 2 choices. I wish to either get a couple SSDs and put in to a RAID 0 and then back then up very often. Probably 4 Intel X25-M 160GB SSDs if it comes down to that. I know there are faster SSDs out there, but the Intel drives are proven well having bought a couple of their drives and never had any issues. The other drive I'm looking at is the 600GB Seagate Cheetah 15k.7; it will double my current capacity, offer substantial speed; the only problem is I don't know how much noise this combination would make. I have no problems running an SAS drive since my RAID controller is built for it. The price per GB on this is slightly over $1/GB which is pretty high, but at least it's fast and will obvious offer about 3.75x more capacity than the Intel SSDs. For the time being I'm putting cost aside because I know this upgrade will be very very expensive.