Go with the AMD. It's quite a lot better at gaming than the Intel.
And for the motherboard, since you're on a budget, look for the cheapest FM2 motherboard that is reccomended in this list (slide it to the right).
Ah alright, I'll pick one up, though I assume that the Athlon X4 740 is pretty much the A8-5500 without the onboard GPU, however there seems to be little information on it. Also I can't seem to see this list you're talking about.