[psharkauburn]

Overclocks for a living??? That's just too funny.

On a serious note - overclocking comes down to increasing transport speed (FSB frequency / cpu voltage) and memory speed (dividers/timings) and these are the duties of the motherboard to perform. 99% of the time these are only adjustable in the BIOS, I have seen older computers with jumpers for moving FSB from 100mhz to 133mhz, but those are pretty outdated nowadays. Dell uses a propriatary BIOS which does not allow tampering in *most* of its models. Some of the higher end models (XPS line) allow some frequency changing but usually within certain tolerance ranges. Based on your cpu I can pretty much assure you that you do not have a model capable of this. So, your options are pretty few - find a hacked bios that's compatible (very much a long shot and very very risky) or replace the motherboard with a overclocker friendly one. The upside is that a MB compatible with your CPU can be found for very very cheap ($30-$50 range) and often with more features than your current board. Look at brands like Abit, Asus, etc.. (overclocker friendly boards) with very configurable BIOS. I do most of my inventory shopping from tigerdirect.com or newegg.com and i'm constantly sent emails about barebones packages in the $200 range w/ very decent cpu/mb/case/ps/ram - worth thinking about if you're finding your current celeron system limiting.