I have a desktop too, an old one again. It's a Dell Optiplex 755, but a Core 2 Quad and not a Duo. 80 GB SATA HDD, 2GB DDR II, no optical drive. It seems to run fine ATM, but summer is approaching and it gets very hot in summers. Is there a way I can keep it cool? I guess, I don't have any option to add cooling systems or an extra fan since it's such a small box? Any suggestions?