Something like that...but hopefully less hideous.
The idea is to make it a functional piece of furniture that looks nice, but also happens to have an "arcade machine" inside. I bought all the parts (buttons, sticks, IPAC board) from FocusAttack.com, and the electronic stuff (wiring, connectors, etc) from Amazon. I bought the Raspberry Pi from MicroCenter because they had the best price ($30).
Beyond that, it was just a matter of installing RetroPie on a MicroSD card, configuring it to only have the emulators I'll be using (MAME, Turbo) and installing and testing the ROMs. Once that's all done (it's a lot of freakin' ROMs), we'll be building the table and wiring the controls.