I'm pretty sure I'd want Rolle w/ the first pick. W/ the 2nd first, I'd seriously consider trading down and picking up an additional 2nd or 3rd. We have too many holes to fill.
WR seems to be a popular choice. If I had to pick between Williams and Edwards, I'd definitely take Williams. I see absolutely no difference between the careers of Edwards and a former UM alum David Terell. What has Terrell done w/ the Bears so far? Not much. Granted, he's had to battle some injuries and poor QB play, but his fellow teammates playing the same position has outperformed him during his tenure.
Personally, I'd rather try to sign a young WR like Plaxico in FA. He's at his prime and he's shown big play ability the past couple of seasons. That, PLUS the fact that very few rookie WR make an immediate impact (2-3 years) leads me to think that FA is the way to go.
So I guess I'd want Rolle and the best available DT in the first.
The player I REALLY want to see in a Cowboys uniform is Devin Hester of Miami. Not sure if he'll be eligible for the draft or that he'd even declare if he was (still pretty raw), but he just seems to play a lot faster than anyone else on the field. He'll make a difference from day returning KOs and punts and could be a factor in the recieving game down the road. Just my 2 cents.
Oh, and for those that want Pollack, I think we already have a similar player in Kalen Thornton. Not a fan of Pollack myself. On the other end of the spectrum, I'm not sure what to think of Kiwi. I just have a hard time believing that someone who's 6'8" can be all that quick...