Here's some news...

Evidence is mounting the Bengals have more than a passing interest in Joey Harrington. Plus, the agent for defensive tackles Sam Adams and Grady Jackson said the Bengals would like to get one of them...
The Detroit News reported there are indications the Bengals have expressed an interest to the Lions and that means a possible trade.
The Bengals are also talking to the agents for the Rams’ Jamie Martin and the Ravens’ Anthony Wright. After opening negotiations Friday, Tom Mills, Martin’s agent, said he didn’t think a deal would be done before Thursday when the Bengals contingent is expected to return to Cincinnati from the meetings.
from bengals.com.

I'd be thrilled to get Harrington as a back up. And how awesome would it be to sign Sam Adams AND LaVar Arrington? I know we won't get all those guys, but a guy can dream...