Duron 800
MSI K7T Pro2A
IBM 75GXP(pick a size)
256MB of RAM(its cheap now)
GeForce 2 GTS(looking better than a 3dfx card right now)
SB Live(pick one, mp3, gamer, etc)
Big ass case with 300wt PS(addtronics is good)
Klipsch Promedia speakers
10X DVD drive
Plextor burner
CD-Rom of your prefrence(some people like the kenwoods some dont)
Thats about it, if you go cheap on some things you may want to go with a T-bird instead of a duron, but there isnt that much differnce in performance and the duron would overclock better.