OK, I ordered an MSI motherboard based on this chipset. It will accept my 15 watt A64 and has PS2 Keyboard and mouse connectors.
I decided to use a discrete graphics card so I'll pick up either an 8400GS, a 7600GT, or a 9600GSO.
Now I have to figure out what distribution to use and how to set up a system to dual boot Windows XP and AROS.
Thanks for the help guys.