[Tiretool]

I would have suggested getting the 600 or 566 celeron but you sound set on getting the 633 so....

I've been reading on newsgroups that alot of people are having troubles getting the 633 to overclock as easily as the two above mentioned chips. I don't know why.

And yes, I'm running mine at 100MHz FSB. Bios shows PIII Running at 901 MHz.
System runs cool as a cucumber and solid. Not one lockup or BSOD as of yet.