Yes, I guess I'd stick to the T20 stuff for rules, but was more concerned with how much I'd have to convert as far a patrons, worlds, ships, etc.
I'd really like to stay near published adventures, and I'm definitly buying the Mongoose stuff.
Thing is, we play around 3 hours a week and would like to get more game in than we have with fantasy D20. From what I've read of the Mongoose playtest, combat would be much quicker and less to keep track of...