I posted my stroller storage system in a different thread, but someone mentioned that I should post about it in it's own thread. If you have any questions, feel free to ask.
I bought one section of Versatrack from Sears, (Craftsman brand in the hardware section), two Hooktite long general purpose hooks, and one shelf. My husband screwed the Versatrack into two studs on the wall with long screws (2") and we slid the hooks and shelf on. Super fast easy project - $25. I also hooked carabiners from the shelf and I hang my carriers from them. I intend to keep my diaper bags on the shelf, but I currently have the seat for my Queen B stroller up there because it sticks off the wall a ways when it's on the chassis. On Sears' website, it says that the one track holds 75 lbs. You would definitely want to screw into studs for maximum strength. The track comes in four foot lengths, but you can cut it to length. I keep my Queen B and Bob hung, Bee + lives in the car trunk, and my MBUD lives in our garage, (I don't use it much).
Here are links to the componants:
http://www.sears.com/shc/s/p_10153_1...1&blockType=G1
http://www.sears.com/shc/s/p_10153_1...6&blockType=G6
http://www.sears.com/shc/s/p_10153_1...2&blockType=G2