How about Rap Music and a really big friggin sub?
Yo, Yo, Yo.....
How about this (seriously)? You could start surfing eBay for some cool music memorabilia for your listening rooms. Maybe some autographed records you could frame, maybe some old vacuum tube advertizements (like that RCA sign I've got), or maybe some concert or band posters of your favorite artists, maybe some music related decor (pictures, wall hangings, figurines that kind of stuff).
Most of that stuff is pretty cheap on eBay. I picked up a really cool Western Electric tube factory grand opening framed poster that hung on the wall of one of the Exec's for like $15.