Which players were most helped by roster moves?

[BLBisinnocent]

Rookies are for the most part useless, and they are most often reached for in drafts anyway, so the draft seems to be the least interesting part of the offseason for fantasy purposes, but which players values changed dramatically because of FA signings/trades this offseason?

Off the top of my head I think of guys like Mike Wallace, Beanie Wells, Shonn Greene, Kevin Kolb, and Joe Flacco as guys who get a huge bump in value....