Wow. Probably nothing I could incorporate here, but like the pic. Floor and rug combo looks good.
maybe go with some sort of laminate flooring with a large rug? Ask Chuck what he is using. Lighting on the jerseys is cool, set lighting on jazz/rock posters on walls.
Framed album covers
Rack mounted towards ceiling to hold snares and other drums. This is the idea, but would want to make look much cleaner. could possibly use PVC as well.
Cymbal lights. These are set up as wall sconces, but could put one or two on ceiling to not take up wall space.
Cool cymbal light. This looks like it has the larger cymbal on top and smaller on bottom. cymbal on top reflect light nicely.