If you want my specs, they are:
amd phenom II x6
dvd/cd rw combo
2 usb power drawing devices
pci-e networking card
sorry if that is missing something or has too much detail...
I think that I will need at least 650w to get the most out of my system if I get this new graphics card.
Also, I realise that you have probably checked this, but are they compatible? sorry if that was a stupid question, I looked at the connections list but I would just like to be reassured by someone who actually knows what they are talking about