Intel 1066 925XE boards shown on web
The Boxed D925XEBC2 is a microATX 925XE Extreme board, also including PCI Express X16 as well as PCIe1 and two PCI slots. The D925XCV is described as part of the Extreme series too but only support 800MHz and 533MHz buses, unlike the former two processors. There's a microATX version of this board as well.
These three boards also support 1394, and have multiple USB 2.0 ports.