bahamut, how is that new rig performing? I've been considering building a couple network slaves, and was checking out the Xeon E5-2630s as they seem to be a bit cheaper and only a little bit slower.
What motherboard have you got your 2640s mounted on?
I apologize for bumping into a semi-old thread, but I'd like to ask you if could could post the link to the company you purchased your workstation from.