wow. duo's gonna be even more of a beast than he currently is ;)
We're getting dual p3 450's for him now, as well as the new case and mobo we already have. Of course, I had to buy a new stick of ram since I fried one when I removed it.
From reading around the internet, it seems the Intel 440gx+ boards (found here) must have SMP enabled in the kernel. We're also going to try to update to the 14.3 bios, since it includes some scsi fixes as well. Hopefully the new duo will be alive sometime soon!