I am a bit confused about which MoBo to buy for a FX-6300. I would like USB 3.0 to the front panel. I have read that 8 phase power handling is advised. Can someone point me to a board with both these features? And what is the difference (apart from £££) between the Gigabyte GA-970A-D3P (£62.70 inc. VAT) and the GA-970A-DS3P (£53.10 inc.VAT) and the GA-970A-UD3P (rev. 2.0) (Usually about £70.00)? Do all of these have the features mentioned above?