Must be able to fit an ATX board.
Bonus points if the board can lay down flat.
I wont be using any type of water cooling.
So far I have seen the HAF XB EVO, Carbide Air540, and the Thermaltake Core X9 (e-atx but supports atx). Outside of that, ive having a hard time finding any other Cube style cases.
Ive got plenty of room and id rather more width than height, hence moving away from tower cases. Although a good mid tower thats wider than normal isnt out of the question, at this point I am only looking at cubes.