This psu that I'm using now doesn't have a fan facing inside... the other one does, but it's 100w stronger than this one. Though I do have an electric fan that's always on whenever I'm using the computer. It helps circulate the air in the room when the AC is not turned on—although I don't think that's what The Skeptic meant.
Thanks stettybet0, I might actually just try that out. I'll go ahead and measure the dimensions of the case to see if it will fit. Oh, and I used Arctic Silver thermal compound with this one... would that work with the heatsink you mentioned? Or would OCZ Freeze work best?