I got the upgrade bug about a month ago. It all started when I wanted to upgrade an old P4 520 I had to a newer Pentium D cpu. One of the other HL members told me he had a Pentium D I could have, but I soon realized that the motherboard I was using wasn't compatible with the Pentium D. So I decided to do what I have done in the past, sell my old parts on Ebay, and use the money to buy new parts. So I sold my old motherboard, CPU...