Pros: I put a pair of these in a new system I built along with an e8400 on an Abit IP35 Pro. Popped just one in, initially. I set the voltage up to 2.1v then tested it out. It ran fine, so I popped in the other, overclocked the system a little (e8400 @ 3.6 and these guys running at 960mhz). I'm running Vista x64 Ultimate, and everything is running smooth and fast.

Cons: A bit on the pricier side, but I usually believe in 'you get what you pay for.' Other than that, there's nothing to complain about.

Overall Review: I'm not quite sure about how warm they get when stressed, so I couldn't tell you how well the heat-spreaders/sinks are working. I can say that I am satisfied so far and would recommend them. Oh, and thanks, Newegg!! Great service as usual.