I just installed one, a 180gb Vertex 2. At this price, it became worth it IMO. The size is ideal for OS, programs and games for me. $300 is less than what I spent on Dual 74gb raptors in Raid 0 five years ago (if I remember right) but this of course is much faster and quieter. It fliiies! This drive is good enough for me for a while, I'll probably upgrade from this when I build a whole new rig in about 1.5 - 2 years or so, then I'll use it in my secondary computer.