Here's a link about Drew Henson's workout in Houston today...
Drew Henson Showcases Football Skills for Scouts
The article didn't go into much detail about the workout itself, but it stated that the only teams to have their head coaches in attendance were the Green Bay Packers and the Buffalo Bills.
Head coaches Mike Sherman of Green Bay and Mike Mularkey of Buffalo were in attendance. So was Houston-area resident Roger Clemens, one of Henson's former Yankees teammates.
On ESPN, Len Pasquerelli and John Clayton said that only 9 of his 75 passes missed, but only four of those were off target. He was throwing to Sylvester Morris, so you know he was bound to miss a few of 'em. Anyway, they also said that his deep ball was looking accurate, too.
From most of the scouting reports I've seen, he's projected to go as a late first rounder to mid second rounder.