How high is it with the daughterboard? Maybe this one would work?
http://viako.trustpass.alibaba.com/product/106207901-101414435/Mini_ITX_Case.html?tracelog=ggsotherproduct1
I'm on my way to the music festival so I can't check exactly.
What I remember is the 68060 with heatsink does not exceed the height of the ps2 connectors - and certainly it is all within the atx panel height.
The board is half-size itx (17cm by 8cm), mechanical drawings are on the website, but I'm going to put all the docs in a cleaner fashion on the new website. It fits in any itx/atx case with two screws.
I tried hard to get two USB connectors on the back, but it would not fit on the adapter.
You can cable off the internal header to an external connector, or use a hub. Note, in this batch nearly all the boards are PS/2 - the USB ones are really for Loriano's case. I don't have the modified ATX panel yet.
For testing, the jig connects to all the IO it can. There is a loopback on the rs232 connector so all four wires there are tested. The video outputs are tested with a couple of different ramp outputs and a scope. Same for composite / svhs. Audio is connected to a pair of speakers. For audio, it's a serial bus, so it works completely or not. PS/2 is tested by the on board pico-blaze PS/2 controller and external devices.
I am working on a probe test for volume production, but for a few 1000 devices function test is ok.
/MikeJ