I had a supermicro 750 a long time ago, and it was the most wonderful case i had ever owned (including the antec 1030 i own now). much bigger, MANY more cooling options (it had room for more than eight 80mm case fans inside the case, stock). it was also just as solid and heavy as my antec. it had many more drive bays, and TONS of room inside. it was truly an entry-level server case.
just my $.02