Well my friend who worked at a computer repair company told me he thought it was because of my power supply and that maybe I needed to upgrade some other things. I was planning on getting 8gbs of ram as well. I'm just not sure exactly what I need to upgrade
ok, you stated what is bottle-necking (and as posted, PSUs don't cause bottlenecks)
i'll ask again what is happening to make you think you are bottle-necking?
(let me help with an answer for an example)
"i am getting less that 45 fps in battlefield 3 MP maps but ok in COD4"