I'd be interested ... but would need to see a short free adventure first.
Sci-fi is really hard to do right, since you have to explain everything. I find that a lot less thinking goes on in sci-fi games that I've been in compared to fantasy games because all the players are at least somewhat familiar with medieval times, but just stare blankly because we don't know how a 26th-century computer program works. Less thinking, more skill checks
Then there's technology issues. D20 Future, IMO, failed utterly in attempting to balance these things. (DnD greatly overuses magic items, the equivalent of super-tech... but at least it has a way to limit them, too.) A setting like Firefly works much better than d20 Future, even though it wasn't designed for gaming, simply due to the lower tech level; the heroes use regular weapons, and their spaceship isn't even armed.