As a Diamondbacks baseball fan, I'm just glad he didn't go to the Yanks. The broadcast of today's Dbacks/Giants game broke the news. Here's MLBTR's report:
The Angels have acquired Dan Haren from Arizona, according to Andrew Baggarly of the Mercury News (via Twitter). Arizona will receive Joe Saunders, Patrick Corbin, Rafael Rodriguez, and a player to be named later in return.
It was first reported by Bill Plunkett and Dan Woike of the Orange County Register that Saunders was involved in a trade.
Hopefully he can be the guy that gives the final push to get you guys to/through the playoffs. When he's in his zone, he can be one of the best pitchers in the game (see: first half 2009).