I have the P5VDC-MX 1.0 updated to the latest BIOS for PCB 2.0. Works fine with Celeron D 3.2GHz, 1GB DDR2-533, Radeon 9600 256MB AGP, and Hitachi 300GB SATA/150 HDD.
This has the much improved VT8251 SATA/300 Southbridge, which only ASUS appears to have access to, for whatever reason. Wish the 775Dual/Quad-VSTA used it instead of the VT8237A.