I would like to build a budget PC for my brother. He mainly plays runescape but he wants to explore some steam games and beyond. He said he doesn't care about graphics too much. So medium to high settings on current games would be good. The budget would be $500-$700. So maybe an AMD build as they seem to be good with performance on the cheap side Also he wants something small. He's been looking at the collosus micro and the collosus mini case. Don't really know the difference of the two as they look exactly the same.