I use the Babylon 5 ship miniatures made by Agents of Gaming. I've made up some templates to print out and glue to a similarly shaped cardboard base. This way the ships that come with multiple plastic stands can have the distinctive 12-sided stands and firing arcs. I use the smaller ones for most ships, and the larger one for the Omegas. For ships with single stands, I use them as is, since a 60 degree arc is one hex side, and just remember to rotate them half a side at a time.
base.doc

I finally got some pics up, unfortunately most of them are pretty bad. A friend of mine has a new digital camera so hopefully these will be replaced by better ones in the future.

Vorlon ships not too bad of a pic
One of the Vorlon ships with an EF Advanced Destroyer
A closeup of the Advanced Destroyer, this one wasn't taken by me, which is why it actually looks good.
An EF Breaching Pod before painting
The finished Breaching Pods
EF Porcupine Carriers (left) and stuttles (right)
Narn Starbase and Th'Nor Destroyer, along with a Jump Gate