my old PC

I have my laptop where i try new approaches to using the computer but I guess it would be good to know is that i actually also have a desktop. I like to think of it as my baby because I actually built it form the ground up and picked each and every part to be awesome. So It's obviously it's getting old...Actually I was thinking and figured that I actually built this PC in 2002 and got a DVD-R in 2003 or 2004. Added more RAM in 2005 but actually my PC is about to turn 7 years old. WHOA!! you'd think it's an ancient machine but it actually runs pretty good. I get to play with newer machines and the difference is not quite as big as you'd expect. partly it's because I quit trying to play the latest games on it. Actually, when i use some photoshop tools I can start to notice it's age.
It sucks because to upgrade @ all means to change the whole motherboard, basically everything would have to go but the hard drives. I still use it quite a bit and I'm starting to wonder how much faster and nicer a dual or quad procesor would work on it. It should be @ least twice as fast...DANG !!! 7 YEARS!!!