Welcome Ant.
As mentioned, there aren't any really bad basses these days. My tip would be to try the basses you are considering on a strap before you buy. The thing to avoid is neck dive if you can. It's an added hurdle to overcome that you don't need starting out.
Issues such as the height of the action, the pick ups, your choice of flats or roundwound strings etc, can be sorted down the line.