Looking good matey. (Y) glad it all arrived safely, try giving heaven or 3d mk 11 a run with that card overclocked, both of them would easily do 900Mhz on the core so i reckon theyll do maybe 930/940 on there own, also if you do ever think about watercooling the card that version doesn't have an integrated heat spreader so you have to be careful with which block you buy
Going to be honest, don't really think this deserves it's own thread... Why not just put it in the fermi club since that's meant to be all about fermi cards? Nice backplate regardless, and the only way to know about overclocking is just to do it, no point asking questions, just increase the core until it becomes unstable, and then either back it off a little if you don't want to increase the voltage, otherwise up the volts till it becomes stable, and repeat.