I may be able to buy one of these workstations, but before I do I need to know the memory speeds it supports.  The online manual says it supports 667mhz and 800mhz DDR2 memory (ECC or non-ECC).  I've got 8gb of crucial DDR2 non-ecc, but I'm not sure what speed it will run at.  The manual says that only ECC type memory can run at the 800mhz speed.  Does anyone know if non-ECC memory will also run at 800Mhz?  Thanks for any help!