If you look here ->Lets see your reloading benches you will notice they all have one thing in common. They may start out well-organized and clean but they get messy. Keep the reloading area as remote from the rest of the room as possible - perhaps a through door or curtain is feasible?

As far as displaying your gear maybe look at how the high end retailers do it.

Cabela's Gun Library with the built in lit bookcases and green carpet.
Cabela's: Gun Library

Visit your local range and see what works for them.
http://nasr.com/

Or simply Google "Gun Room Ideas Images"
gun room ideas - Google Search

And if for no other reason than the "coolness factor" I'd top it off with a vault door!
http://www.libertysafe.com/safe-vaul...fes-ps-13.html