You'll pick up my bias here, but Cutler's QB-rating was a whopping 1.7 points better than a certain oft-maligned D.C.-area QB that too many people wanted to throw under the bus this offseason. But avoiding that tangent, I'd also ask, how many years has it been since the Bears had a 1000-yd receiver? (2002: Marty Booker, right?) I'm not buying Hester.
So this trade to me is really about whether you think Hightower is more productive than Wells in Arizona this year. Even if he is, Hightower is still probably a low RB2, high RB3.
I see Cotchery as a solid WR3 and that makes him the best player in the deal in my book. I'd renegotiate this to see if you can get an even better deal, since I'm guessing the guy thinks he's swindling you at that asking price -- but push comes to shove, yes, I'd take Cotchery over BOTH.