ASRock B75 PRO3 $74.99B75 Pro3
<-- full specsASUS P8B75-V $89.99P8B75-V
i picked those two because they are full sized ATX motherboards and i favor those because they are easier to work on if my stubby fingers.
the difference is the ASrock has 3 SATA 6Gbs ports - two of them are a third party chip and would not be able to be "bootable" for an OS. but you need only one for that.
the ASUS has lucidMVP that can help use the intel HD 2500 on the i3 for use in quick sync and a slightly better frame rate in some games.
there are quite a few cheaper motherboard but i didn't suggest those because they are micoATX and i explained why i avoid them. it may not matter to you, here is a sorted list on pcpartpickerhttp://pcpartpicker.com/parts/motherboard/#c=26&sort=a6