I'm running 2 of the 32Gigs in a RAID 0 with no extra special cooling? I have them mounted low in the chassis and the front 2 intake fans blow over them (and the 160Gig storage 7200 drive) and I've had 0 heat problems. It's a coolermaster case with a total of 4 80mm fans (2 front intake, one rear exhaust, one top blowhole) plus the PS fan. I'm happy with mine, I just wish the 74Gig's were out when I got mine. Ever since I discovered bittorrent, I've had to watch what I keep.

Raptors have been out for a couple of years now, there's probably something newer and better coming down the pipe, but $152 is pretty good price.