There are a few choices for ddr3 ram or nvidia (no cf tho) but for intel/ddr2 is this is all i can find.
Newegg.com - Foxconn ELA LGA 775 Intel P45 ATX Intel Motherboard - Intel Motherboards
Just not that there is no way all those slots run at 16x. Probably an 8+8+4 config at most if all are in use. Wont make much difference in gaming though..
Edit- Also don't forget that you're going to have to hack the drivers to get physx to work with ati