Shuttle AV40.
I have only one complaint.
I tried to push the 1.5GHz P4 to 1.8 at 120MHz FSB. The MB would not post and could not recover to the previously settings after re-boot. I have to clear the CMOS to reset. The BIOS options are excellent for overclocking, but the lack of automatic recovery is a serieous drawback for OC.
Otherwise, it is fast and stable at 115 FSB.