Mine is my Oct-2006 Core 2 Duo E6600 on an Asus P5W DH Deluxe. Used daily. I've since added RAM (to 6 GB), hard drives and a few other things. Replaced the original power supply last week when the old one (a 600W Seasonic S12) burnt up. Otherwise it's been the most rock-solid machine I've ever put together. -- "The counsel of fools is all the more dangerous the more of them there are." -Ólafr Höskuldsson
My son's PC, which was my old hand me down, built in 2001. It runs XP Pro and he uses it to play some games. Inwin case, P4/1.6A O/C'd to 2.1, Asus P4B266 mobo, 1GB of RAM. Just about every part has been swapped out at least once except for the mobo and CPU.