The socket type is irrelevant when selecting a case. The details to look at are:
1. Clearances: if you have (or are considering) large components, such as a tall heatsink, a long video card, or an EATX motherboard, you need to make sure they'll fit.
3. Aesthetics (deciding whether you like the appearance of the case)
OK I want probably a liquid cooler for my CPU, and an Nvidia GTX 670 or maybe 2x GTX 660 in SLI.
SSD instead of HDD...
and what was that about the motherboard?! I don't even know, sorry...