I'm about to upgrade or buy a new computer. All of my friends at my school were issued the same Dell 4 years ago, so i could easilly scavange parts when they throw them out. Is it possible/economical to buy a quad core mobo and use pentium 4 3.4GHz in them? I have 4GB DDR2 Ram, so i would like to reuse that. Would like a new video card and to keep my DVD burner. I have a 1TB SATA hard drive, so that's good also. I don't want to make too many components not compatable with my new mobo. Is it worth using multiple 'free' pentium 4 processers, or should i man up and buy a real processer? Can any body help me pinpoint other concerns that i would need to address, and help me answer them? Thanks!!!