Well, I decided I wanted to get some more life out of my 2.5 GHz Celeron (Northwood core) before I dumped it for an Athlon 64 3700+ Sandy, and decided to OC it. I've got it at 2.75 GHz, with a 110MHz FSB and a 25x Multiplier (!). I think I'm gonna up the FSB to 120, giving me 3 GHz flat, and see if it's stable... I know it's not anything major, but it did raise my 3DMark03 score by 270 marks.
I'll post CPUZ verification in a little bit, gotta get the internet working on it again... I'm on the laptop right now.