what would be the psu requirement ?550w 80+ is'nt enough or 650 would be better?
and cooler 212 evo?
do i need to change the case also
Yep the CM Hyper 212 Evo is cheap and great cooler. I recommend SeaSonic X Series 660W 80 PLUS Gold Certified for a cpu. Case is fine, though I like the COOLER MASTER HAF 922 only $95.