Opus - I am in the midst of gathering all of the pieces needed to duplicate your rig. The Asus P4B266 Mobo is starting to give me a headache. I am finding so many variations of the damn thing. You have said to get the plain jane (no -C version) board. I have now found info that says that there are 2 versions of the chip sets. A 845 and an 845D. Which one is the right chipset?