With a Wacom Intuos3 Plugged in, the system won't boot.  Won't even post!   Disable USB or unplug the Wacom and the system boots with no problem.
 
Tyan Tech support thought it might be the system is looking at the Wacom as a boot device.   I haven't had a chance to try their suggestion of plugging in a USB card reader to see if it does the same thing.
 
Should that be the case, am I really going to have to unplug the Wacom every time I need to reboot???