From most of the posts on BoardGameGeek.com regarding Federation and Empire, having a second copy of the game is a good source of ship counters, which you’ll need plenty of, apparently.
There’s also a module for Vassel, for online play, so that’s a play option, too.
It’s just too bad that the two empires/races (Gorn/Romulan) that I most want to play are on opposing sides. Though that might make for a good starting point for learning the game.