My computer is aging and I'm starting to have some issues with blue screens, lockups, and freezing. Problem is I'm on a severe budget. I can harvest my mouse, keyboard, speakers, monitors, and hard drives from my current system. So I need: - CPU and motherboard - Ram - Case and PSU My current video card is an nVidia 8800 GTS 640mb. I can salvage this if need be for the meantime until Christmas when I have enough to finish my system. My budget is $425. I haven't followed hardware trends in years and need advice.