Those players have been linked because they are some of the best players in the draft. What team wouldn't be linked to them? And the Cowboys are already linked to every FA and trade possibility, the draft is no different.
Sure the Cowboys are going to be interested in Dez Bryant, but the reality is that it just wouldn't make any sense for them to take him in the first round, especially since they'd probably have to move up to get him.
We know our top four already...Austin, RW, Crayton, OTree...unless one of the bottom two gets moved (unlikely imo), there just isn't a spot to justify a pick that high and the amount we'd be paying to the position as a whole.
Maybe RW and Crayton deserve their cash, maybe they don't. But it's not the point when talking about drafting a WR. They're here, they're getting paid, and they aren't likely to go anywehre.