I just happened to stumble across this site, and thought it might be of interest to some. It's a good overview of what's currently on display in the USAF Museum at Wright-Patterson AFB, near Dayton, OH. Plus there are some good links to more detailed views of most of the display aircraft. There is a particularly good section on the B-17F Memphis Belle restoration. If your into U.S. aircraft it's worth a look.
http://www.nmusafvirtualtour.com/full/tour-std.html

The Armorer