Hello and a question/idea about a CP

[VooDoo]

Hello everyone.  I wanted to say hello to everyone and thank them all for their post/ideas/websites etc.

I was thinking about building my first cab, and being a woodworker (now a hobby) I was thinking about trying to save space.  That trackball everyone has needs some space, esp. if your going to golf with it.  Has anyone yet done a CP with a second pull out sub CP?  Something like this or the HD version

http://www.rockler.com/ecom7/product_details.cfm?&offerings_id=220

In place of the keyboard pullout.  I bought a great wireless one from newegg with a built in joystick/mouse for about $15 and use it on my home PVR (MythTV).