I have an old, outdated, three year old computer I built. Yes, it still works. I know its way behind for an overhaul but I don't have the green to hook it up yet. I was wanting to OC my 850MHz Slot A Athlon I have. How would I go about doing this and how far/how much juice do you think I could bring out of the old bastard?

SETUP:
Athlon 850MHz Slot A "Classic"
ASUS K7V BIOS v1007
GeForce2GTS64MB
3DCOOL Tornado 1000 [Don't worry about airflow/temps. The CPU now has 2 fans on it, the case has 5, and the video card has 1. )
For any other specs on my system just look at my sh*tty website.
Thanks!\

PS - Feel free to throw out experimentation information - lets see just how far this thing can go!