Pros: Very high single and SLI performance. Both Neverwinter Nights 2 and Rollercoaster tycoon 3 absolutely dance in SLI mode. About as noise free as a factory fan can get at idle (see cons).

Cons: Runs HOT. Both of mine idle at 55-60c and after a hour-long hack 'n slash in NWN 2 both gpus are at 80-85c with the fans screaming like a nuclear-powered blow dryer. Not good.

Overall Review: As always, Newegg customer service was superb (they shipped less than 2 hours after I ordered). I replaced the stock fans with Zalman VF900CU fans. Big improvement in temps and noise.

Pros: Drop-in replacement for my 4200+. Prime 95 stable at 2.86 ghz with stock voltages. I'm going to wait for the system to settle in a while before pushing it higher.

Cons: None yet.

Overall Review: At $239 you just can't go wrong. Upgrading my rig to Core 2 would have cost over $700 (new mb, cpu and memory) for maybe a 10% increase over the Opteron. Get them while they last.....