The Lian Li is quite a big bigger than most other mitx cases I've seen -- it seems like just a short hop to micro-atx.
The chenbro looks great, but the reviews seem to indicate the power supply is trash.
Which apex box did you end up with, the MI-100?
Been poking around for a case for a new build for a few days now, without much in the way of results.
The two cases that seem most promising are:
the CFI A7879
and the HiveLogix mitx
Either would be ~$200 after shipping (and picoPSU in the case of the HiveLogix), which doesn't seem like a...