I recommend agianst it, it is a bad performer, <A HREF="http://forumz.tomshardware.com/modules.php?name=Forums&file=faq¬found=1&code=1" target="_new">SEE MY COMPARISON HERE</A>
Asus's latest BIOS for this board does support the Coppermine, but I would recommend the PIII 700 instead of the Celeron. The 700 is one of the best overclockers for most PIII motherboards, should you choose to push it. IT will go to 933@133. You can use the Socket 370 w/converter (aka "slotket"), or you can use the Slot1 version. I recomned using the "slotket" as it gives you more options for heatsinks, upgrades, etc.
Cast not thine pearls before the swine