Ah I see. Yea because the wood looked like a solid piece which would block all the light :P. You don't have to worry about posts/guides for the light as it won't move around at all if it's just resting on the hood, but if you'd like it wouldn't hurt.
I think you could get a can of epoxy for cheap, black as well, and painting the wood/braces with that would match your screen/speaker/mouse. Just a thought!
And I have the logitech mx revolution mouse as well
! So good haha. I didn't figure out there was a button under your thumb until I installed the "setpoint" program.