So I just got my new 8800 GTS. I'm currently running a 6800. I have a standard Dell Dimension tower (yea, I know...but buying a pc from dell outlet was cheaper than buying all the parts seperate). I have my new power supply on the way (Antec 650W TP3). My question is do you think my case will be able to hold up with a new power supply and graphics card or is it going to overheat?