Im restricted to those two choices as I need a pci slot . No way im ditching my soundcard!

Yeah im not totally convinced in the need for auxiliary pcie, but cpu definitely. These new chips pull epic wattage over 5ghz. On multirail PSU's the extra connectors can definitely be worthwhile.

From what I saw the intel board didnt do great with pcie lane division and also doesnt offer ddr sqews for running with 8 dimms. Other than that it looked sweet. The UD5 seems to tick every box however, but the one review Ive seen has said it doesnt clock cpu as well as the other boards out. However that is Vortez who probably had to rtfm just to stick the ram in so taking that with a pinch of salt is advised.

Either way ill be waiting til around xmas/new year time so there's plenhty of time yet for me to change my mind .