hello everyone, im new to this forum and would like to ask everyone to help me out to build my very 1st rig.

heres my stuff but its not yet complete as i am confuse which part should i be buying.

mobo: ASUS rampage 2 extreme
CPU: I7 930
PSU: 720WTS GIGABYTE (dun exactly know which one. im in the office at the moment)
(all these components are given to me as a gift, from where they bought it, i dunno.)

VGA: n/a (help me choose)
RAM: n/a (if anyone is selling pm me.)

thanks!
-RC