Monster, the Sox just gave up 4 players for Beckett and Lowell, and Lowell actually worsened the deal for Florida because of his albatross contract. If they were to get Willis under club control for 2-3 more years before signing him to a long extension, there's no doubt in my mind Florida would demand at least 3 but probably 4 legit-to-stud prospects in return. There would be a bidding war for him, too, so that's not an if.
Regardless, this is moot. Loria dispelled these rumors the other day, but it's common sense. Why trade a durable, young, left-handed, marketable, popular, intelligent, young, left-handed, star pitcher?
And don't come back and use the "they traded Beckett" argument. Josh is skilled beyond belief, but the fact is, October 2003 notwithstanding, he's a .500, injury-prone pitcher. Dontrelle has been an All Star multiple times and has a 22-win season under his belt. Scarily, with any run/defensive support, he should only get better.