no I don’t. And I never had xeon based rig so I don’t know if they come in retail boxes with heatsinks like standard intel cpus. Right now in this case I have one 120Ultra on Q6600. About the mobo… Is Supermicro X7DWE ATX better than asus? http://www.supermicro.com/products/motherboard/Xeon1333/#5400
Or maybe TYAN but as I can see only Tempest i5400XT (S5396) supports windows and quad and I think it doesn’t look like standard ATX.
For what its worth I only just got a Noctua heatsink to fit in my new standard cased PC, so measure 3 times cut once…very quiet and good cooling though.