I have got myself a Asus hd 7970 to replace my ageing Sapphire 4890. I don't want to throw the old GPU away as it can still play most games at medium-ultra settings @ 1600x900. So can you guys suggest a CPU+Mobo+RAM that won't hold back the performance of my 4890 at least in gaming. The system should be as cheap as possible. Oveclocking and power consumption are secondary , although you may use them as a criterion in case the two systems tie.