For all the fellow miners out there, what specs did you start out with? I started with (and currently still use) a single HD 5750. ~120 mhash/s without any flags, around 160-180 mhash/s with. Nothing decent, I know. At least I didn't have to pay for it, and I don't have to pay for power. So it's all profit.

I'm looking into putting together a dedicated mining rig, but that'll be a while.

How long did it take you to upgrade from what you started with?