I have this mobo and it's rocksolid for OC'ing.
I have a Duron 700 running @ 913 (by CPUid) @ 100FSB. I used AS and a $5 EKL heatsink and it runs quite cool. I also used a Maxtor Ultra-ATA 100 controller (free AR) since this mobo supports only ATA-66. No reboots, freezes, or BSODs.
In order to do this, i had to Flash the BIOS to r3.
After OC'ing, this mobo becomes picky on your AGP Aperture settings.
I actually bought this mobo for $80 a year ago so it's a hot deal if you're not going to the 2GHz++ zone!