not mining... I thought I read mining takes quite a bit of electricity costs that prohibit any real gain??? 
Get yourself a kill-a-watt and see for yourself. With a few calculations you can determine profitability as well as learn some new things in the process.
Yea, I've been wanting a kill-a-watt for a while now, they're just so darn cool.... and I know it's only like 16 bucks, maybe once I get a REAL miner going I'll grab one with some extra funds...