What I like most about the cab is it's form factor. It not only doesn't overwhelm the countertop, it looks like you could take it with you. 
I wanted it small and light enough to be ported around to various parts of the house, as well as lent to friends when they have parties.  The CPU has a thin layer of foam rubber around it where it touches the retaining ribs.  It should travel well.
I can't remember reading if that was a magstik or not, if it is a magstik - whats your thoughts?
It's a 4/8 way magstik, top switchable with the magnetic centering mechanism.  So far so good.  The action is very light.
I would reconsider your plans and do a jukebox next. I actually need to build another jukebox. 
This might be a good little project if I can track down another semi-dead laptop.  I wonder if there is jukebox software out there that could be driven by buttons only (no joystick or trackball)?  You got me thinking about a small, thin box, limited only by the size of the speakers.  Hum...
How do you find it plays with it's lower weight? Any issues with the cab moving around a lot, especially on a smooth surface like a counter-top?
  No problem so far.  I should have a much better idea in a few weeks when it gets christened at its first party.  Yea... PartyBox's first party !    I'll post some pictures.
  Wow, that's one sharp little unit...very professional end product alright.  Looks like LCD's are taking over this hobby. 
Thanks for the compliment.  I seem to recall studying a black and blue cab with lots of lit buttons before beginning this project.  I probably won't use LCD's on all projects that I may do in the future, but hey, I had to do it at least once.  I think it works on this cab.