I agree with the Dallas pick 110% (a shocker, I'm sure). If you have a dynasty league starting up, or if they're a FA, get them immediately.
Dallas, in their first year with a new defense and a LOT of young guys (Bradie James, Chris Canty, Marcus Spears, Roy Williams, DeMarcus Ware, Terrence Newman, etc.), Dallas performed admirably. They can only improve, and here's why...
+ added experience of young players can only help
+ hope to have Anthony Henry healthy all next season
+ Burnett is being shifted back to natural role
+ Newman gets better and better every year... should have been a Pro Bowler, but got snubbed (let only 1 TD reception go on him)
+ as stated, Roy will get more freedom with addition of cover FS and added pressure in box. And Roy's a beast.
The only downside is the expected loss of defensive leaders LaRoi Glover (damn!) and Greg Ellis (double damn!). But we have great replacements already set to step in (Ferguson, Canty) that are more suited towards 3-4.
'Cause I'm Cow ... Boy ... for life.