I wouldn't trade Reyes for Soriano (and fortunately, I don't think the Mets will either). Reyes is the Mets' best prospect since Darryl and is 8 years younger than Soriano. It's still a little early to know whether he'll be as good a hitter, but I think there's a decent chance he'll be as good a player. Reyes is practically free the next three years, and then reasonably priced for 3 years of arbitration. With Soriano, we'll have him for three years at escalating salaries, and then have to decide whether to let him go or give a 31 year old 2B big money, multi-year deal, which isn't all that attractive an option.

Trading Kazmir is a little more sensible, but I think I'd turn that down, too.
First of all, even with Soriano, the Mets probably aren't winning anything this year, while Kazmir will hopefully be a big part of the next Mets' championship team.
Secondly, if we move Soriano to RF, he loses a lot of his value. Soriano ranked 3rd amongst 2B in EquivalentAverage last year (behind Boone and Giles). He would have ranked 11th amongst RFs.

Anybody want to buy the Brewers?