For amd, my old foxconn a7da-s 3.0 atx with am3 and ddr3 support has spdif and an hdmi port. Newegg is closing them out at around $50. The bios is just average, but it works. You won't find spdif on any micro atx boards that I know of unless they're made for hp. Check ebay. Those boards are frequently used and don't have any bios adjustments.