PSU is to be placed upside down in the 1200 and therefore the cable will be further away from the m/b. In addition, the 1200 is very high(22/80mm higher than HAF932/HAF922) which make cables even harder to reach the top. Don't get Antec case if you want to have a 11" high end graphic card in you PC and better cable management.
HAF922 can even hold a 12" GFX with much better cable managment, larger volume(1.12 times as the Antec 1200), much lower noise(check reviews on NewEgg for 922 and 1200) and much cheaper price!
p.s. I have just owned the HAF922 for a week and it already gather a visible amount of dust on the filter already due to its "HIGH AIR FLOW, HAF". In addition, it is not as ugly as it seem to be in pictures. The only drawback is that there's no filter for PSU and it could be fixed by covering the PSU with a pantyhose. Besides, note that some PSUs(such as my RS-550-PCAR-E3) are not able to be mounted upside up due to their fan grill which can be fixed by reversing the fan grill!