I've used that a couple of times for other fandoms, it's pretty good. There are some similar sites I've found useful that cover vehicles etc.
I wanted to identify the plane in Kill Bill, someone pointed me at the Internet Movie Plane DB. It doesn't cover many TV shows, but if you've seen a plane in a movie and want to find out what it is for your fanfic, this may be able to help:
http://www.impdb.org The most useful TV show I've found so far in it is NCIS, lots of planes etc. for that one.
Also Internet Movie Car Data Base
http://www.imcdb.org/ You have to search for specific movies / shows rather than browsing, and there isn't as much information as there is in the planes database, but it seems fairly comprehensive. Here's the Lois and Clark page
http://www.imcdb.org/movie_106057-Lois-and-Clark--The-New-Adventures-of-Superman.html And another for helicopters, seems rather better
http://www.rotaryaction.com/