I mounted mine inside a project box from Radio Shack, and then put it beside my monitor inside the cabinet.
That kept it out of my control area, so that I didn't run into any problems down the road with a control that wouldn't fit into an area because of the I-pac on my modular system.
If I had a fixed control panel, I still would have put it inside a project box, but I would have put the box inside the control area for accessibility.
The nice thing about the project box, as opposed to mounting the board directly to the wood using PCB feet, is that it allowed me to put cable restrictors on the wires coming out of the box.
That prevents the wires from pulling directly on the terminal connections if something were to snag up while being removed.