Thanks for some useful advice, V!ru$007 is my friend and the query was for me.
So, finally got ma rig up and running. Here are the specs:
Core i5 760 2.8 Ghz
MSI P55-GD65
Corsair 550vx
Corsair 2x2 GB DDR3 1333Mhz
Seagate Barracuda 2TB
PowerColor HD 5770 1GB DDR5 (planning to buy 1 more...