Heh, good timing. I'm actually in the midst of building a cocktail cabinet right now. However mine isn't your traditional cocktail cab set up...it's being built into a small island for the kitchenette part of the HT. It's designed to match the existing cherry cabinetry.
This will be in addition to a full size upright MAME cab I built 2 years ago, and a smaller commercial Hanaho "Arcade Classics" upright unit. Both horizontal. I've been jonesing for a setup where I could better enjoy vertical games like Tempest, Centipede.
Attached: in process pic with 22" CRT dry fitted.