From Personal experience i can tell you the Antec 1200 is probably one of the best air coolers out there, but if you have the money the Silverstone Fortress FT02 is simply the best Air Cooled Case money can buy in my humble opinion, oh and others.
I want to liquid cool "Eventually" but for now I don't have the cash for a custom liquid loop. I am looking to see if the Antec 1200 is a great case for air now and liquid later. I am also at the moment wondering if a single 480 rad will fit in the front of the 1200 if I don't use and dvd/hdd bays? I plan on using just a large capacity or two ssd's.