The ABIT KX7-333 comes in 2 flavors, with RAID controller and without RAID controller.
It has the VIA KT333 chipset, it's a Socket A mobo for Athlon, Athlon XP, Duron, the AMD processors, it has nice features, now it's up to you to get the RAID version or the non-RAID version of the mobo.
If you plan to build a RAID array or just put more HDDs than the normal get then the RAID version.
You might wait and see what others owners of this mobo will say about it. I remember while ago that I read something about the TBred support that U needed to RMA this mobo to get the support. So you might check the latest versions of this mobo and see if it already support the TBreds.
It's a good mobo, stable, 4 DIMMs, got nice oc features.
I think you should consider the Epox mobos, 8K5A2+(with RAID controller) or 8K5A2(non-RAID), has USB 2.0, and IMO the BEST OCer out there, dont know if you plan to OC too. And it has full support for TBreds.
Raf