Hasselbeck is a definite no-go because of his matchup and his play of late, so he's off the board. Between Henne and Orton, I'd lean slightly toward Orton even though Henne has a better matchup. He's simply a better QB, and when you're in the championship you need to play the guys that have +EV rather than the guys who could
have a good game.
At DEF, I think you have to go Cleveland. Schuab and Johnson have been lighting teams up left and right for Houston, so I don't think I could play the Dolphins with confidence if I were in your shoes. Cleveland isn't the most talented bunch, but they're facing a team that, well, isn't the most talented bunch either. If you get special teams points, this decision becomes trivial--you're definitely starting the Browns because of Cribbs.
Here's mine: http://www.fantasyfootballcafe.com/forums/viewtopic.php?f=19&t=465966