All the boards perform very similar with the same chipset. I use biostar and msi for the bios options. Download the board manual next time before ordering. All you really need to know is the overclocking and voltage options. For the power supply, stick with a name brand such as corsair or antec, and 750w should be enough for one video card.
Yeah since Iam new to this I ended up getting the wrong mobo with 1156 socket instead of the 1366 for my i7 950. That was a costly mistake at least I can return it. Here is the new one I decided on
I think I will also not get the sound card because Intell states on their website that the stock sound is worthy or not buying an aftermarket one and since I wont be using anything elaborate to play my music Iam sure the stock one will work.