Hi,
I recently discovered Bitcoins (too late
) and I started mining with my GTX 580. No need to say that it is kind of useless for this purpose. Now I was thinking about building a rig exclusively for mining. The reason I seek your help is, that all the hardware related information found on the web seems either slighlty outdated (mid 2011) or very vague. I am no expert on hardware, so I would be glad about any suggestions. I'd like the rig to pay for itself and after a year or so make some profit (even with the high difficulty, I guess it's not going done anytime soon). I am willing to spend up to 1000 USD, probably going to look for used parts as well. I think I currently pay 0.28 USD/kWh, don't know if this expensive though. 
If you have an up-to-date guide on hardware, and I was too ignorant to find it, please point in its direction. Also, I'd like to have it really powerful, not just 300 Mhash/s or something, more like 2-3 Ghash/s.
Whatever is possible with the circumstances I described.
Thank you!
I recently discovered Bitcoins (too late
) and I started mining with my GTX 580. No need to say that it is kind of useless for this purpose. Now I was thinking about building a rig exclusively for mining. The reason I seek your help is, that all the hardware related information found on the web seems either slighlty outdated (mid 2011) or very vague. I am no expert on hardware, so I would be glad about any suggestions. I'd like the rig to pay for itself and after a year or so make some profit (even with the high difficulty, I guess it's not going done anytime soon). I am willing to spend up to 1000 USD, probably going to look for used parts as well. I think I currently pay 0.28 USD/kWh, don't know if this expensive though. If you have an up-to-date guide on hardware, and I was too ignorant to find it, please point in its direction. Also, I'd like to have it really powerful, not just 300 Mhash/s or something, more like 2-3 Ghash/s.
Whatever is possible with the circumstances I described. Thank you!