Asus P3B-F's may be the finest 440BX mainboard ever made. Sadly, they are indeed difficult to find. I may know where to find one in Seattle, but it's iffy. Moving on, AFAIK the only Slot 1 form factor i815e mainboard is the Abit SH6. Once bitten, twice shy, the only Abit mainboard I ever bought was a lemon from hell.