I have a question. I am intent on designing my first modded case using a rather unique and awsome case I have found. PC Design Labs dont seem like a mainstream group, but they have a custom PC design that just rocks. Anyway, most cases, especially smaller cases, have restrictions as far what size power supply you use. What are the main power supply sizes and their differences? I have seen some different "labels" and dont know how to tell or what to look for. If the case says its compatable with ATX power supplies, what do I look for to make sure it fits? I have seen power supplies that say ATX/BTX... as well as ATX/EPS. What should I look for label wise, or should I just be safe and look up the measurements?