I've had one running with zero issues for three weeks, and being the original test board it was stressed more than the rest. As long as you keep them cool they should work just as long as stock.
Asking price dropped to 1BTC
some people still don't understand how difficulty works
it will be well over 500m in 4 days, closer to 550m most likely.
so you can get about .08 or .09 bitcoins in 4 days, and the price of that will drop another .2 btc
actually, that exocyst offer, you should probably take it on the 7th