Can't decide between these 2, the 300 seems to be the most popular, but then the Z7 only just came out. They are both styled very similar and the Antec has got most the features I want. However the Z7 ticks even more boxes, partial tool free install, comes with a 3.5 ->2.5 SSD adaptor and is cheaper than the 300. Anyone used the Z7 ? whats the airflow like ? is it any good or just another 300 pretender?