Sorry Gutpuppy, but I disagree with you full-heartedly. The trade for Alexander is one that you should not pass up on. You are being offered a RB (Henry), who will have a good year, a WR (J.Smith), who is one of the best WR to have and Shockey, who is improving each week.
Take the trade, You still have williams, edge and you'll have Henry. You can make the points up with Ricky Williams and Henry. This will leave you the luxury of trading a decent WR to get a good back-up RB.
I would jump all over that trade offer.