Cooling is the primary concern..I have a pretty crappy computer I pulled out of work (single core sempron at 1.8 Ghz) and shoved a 7950 in there along with a box fan. It is some compaq computer with no fans so it isn't exactly the king of cooling..450 watt PSU powers this thing.

The best coin to mine is whatever coin comes out tomorrow. seems to be an influx of new ones coming in.

I cashed out about 260 yesterday.

Tis a tad annoying...what can ya do though?

I went to walmart and used bitinstant..although the fees are bit insane.