Antonio Bryant is usually hampered with lingering injuries throughout the season. I think he's only had two years where he was fully healthy. That being said when he's on the field he's above average but he's also a total primadonna and a similar play to TO (on the field).
Regardless it's a good signing. Low risk high reward. TO showed a lot last year in Buffalo and like a lot of other Bengals (Pacman, Tank, Benson, etc) all seem to have a chip on their shoulder.
With the addition of the tight end Gresham, Bryant, some young receivers, Owens, coupled with a very nasty offensive line with a rejuvinated Cedric Benson the Bengals could be a very explosive team offensively.
Palmer should have a HUGE year stastically speaking.