Need help building new gaming rig

[ErasablePen]

if you have a microcenter around you you can pick up a q6600 for 200.

edit: its in store only

Nearest Microcenter is two gas tanks away in CA . Which would pretty much even the cost out with newegg.

By the way, what kind of power supply would I need? Would 550W be sufficient for mild overclocking? Thanks again for the help.