Although I think that the rumours are nonsense, Damphousse could be a great addition to this team.
He provides great depth at center, and can play on any of the 4 lines, if there are injuries. Also, he has the ability and has over the past few years played some wing as well, so if the young kids aren't producing he gives you a lot of leverage to tinker with the lineup.
He's a good leader a proven 2 way center and has the ability to be an offensive threat and chip in as a fill in on the wing with one of the top 2 units.
If it could fit into the cap, he'd be my first choice of the remaining players.