Found one
The soyo SY-P4S Dragon Ultra comes with
DDR SDRAM
RAID controller on board
Audio on board, with 6-chanel Hardware Audio
Graphic, Universal AGP Pro slot
Overclocking, setup FSB by 1MHz increment
Network, 10/100 Mbps Ethernet
USB 2.0 ports
I have not found one that suports RDRAM though.