ASUS P6X58-E WS @ OC Club

"Connectivity shouldn't be a problem unless consumers are wanting to use older hardware, such as PCI cards. With dual gigabit Ethernet, both optical TOSLINK and RCA S/PDIF, two USB 3.0 slots, one IEEE 1394 FireWire, a combination PS/2 port, and six USB 2.0 ports there are plenty of options on how to hook things up."