If you want to stay BX, you might consider an MSI BXMaster. Might be able to pick one up at a reasonable price. Stable, OC's well, has the Promise ATA66 controller onboard. Maybe you've been running your PIII @ 933+ and you know your components will do it. If they'll do it on a BH6, they'll certainly do it on a BXMaster, and if they won't do it stably on a BH6, there's a real good chance they will on the BXM.