I really think Sammy Lee Hill could end up a Seahawk, it fits the mold of the FA type of player John would go for. Cheap, young, some potential, and in the very least a good run stopper. I think they would sign Branch only if he is cheaper instead of adding Hill but I think one of them will be our starting DT/rotational 3 tech with a draft pick and Scruggs competing for playing time. Jenkins is a maybe, he might be old enough that we could acquire him as a stop gap until a draft pick takes over. I think someone stupid is going to pay him a bigger contract than necessary though. Desmond Bryant is not really under the radar as far as I'm concerned, I can see Dallas dumping some contracts and paying either Bryant or Jenkins, Jacksonville again could offer a pretty decent contract for either as well.
Other guys I'm thinking might get a look.
Andre Neblett, Terrance Knighton, Trevor Laws, Matt Shaughnessy, just keep in mind, these players might be picked up but may not even make the final roster.