I hung these plywood panels in a non-traditional way. Since these panels will be stained, and will be the visible "wall", I didn't want to see screw heads. To make this happen I borrowed a tool from my YL (I'm pretty sure I've used it more than she has...)
For those that don't know, this thing is called a Kreg Jig. It lets you create perfect holes for pocket screws, which is a pretty slick way to hide fasteners. The most common application is probably for making the face frames for cabinetry, since they are an easy and fast way to join material that is butted together. In my case, when combined with some construction adhesive between the stud and plywood, it was a perfect way to screw my panels from the rear, while being sure that the tips of the screws wouldn't poke through the face!
The way the height works out, once I build the desktop, the desktop and splash guard will hide the seam between the top panel and the one below. The end result will be a seamless wall the I can mount equipment in, that is strong enough to hold anything that I might reasonably hang on it (TV / PC monitors) that gives me a finished look, while at the same time giving me very easy access to the rear of the equipment!