SG1 or another group finds an intact ship, really old, from the yet to be identified race, left out there with minimum power. Could have been planet bound or gate to required in space but not 'out of reach'. Then they could have had a season of getting to know the thing, founding out how to use it and find it can 'jump' via self made wormholes really great distances but only where it has been before in its' address database. Then the writers would have had a whole lots more playroom for adventure as Galaxy jumping and the whole gambit of possible lifeforms opens up.. Star Trek on roids!