I got my 2500+(1.8Ghz) to 2.2GHz on first try.
Specs: 200x11, 512 3500 Geil Golden Dragon, Aero 7+(40deg idle), Abit NF7-S ver 2.0, and ATI 9800.
I want to go farther but for now it's not worth frying anything. Heck, I got a 3200+ with 400Mhz FSB for $80 shipped. Can't beat that deal.