C,
While I didn't go through my issues, I know of several good Sci fi sellers that have a good range of products.
Check out
http://www.dlmparts.com/pages/1/index.htm
http://www.federationmodels.com/
If it was lighting sets you were interested in, the latest issue has an ad that I have seen in there before for Miller Engineering at www.microstru.com
Hope these help.