From the Chicago Sun Times:
The Cubs have traded for Oakland A's pitcher Rich Harden in a multi-player deal. This counters the move of the Milwaukee Brewers, who acquired CC Sabathia.
The Cubs also acquired Chad Gaudin for right-handed pitcher Sean Gallagher, outfielder Matt Murton, infielder Eric Patterson and catcher Josh Donaldson.
The A's official release (and some info on the new A's).
ESPN digs at Harden a little bit in their version:
Harden, scheduled to be a free agent after the 2009 season, is 5-1 with a 2.34 ERA in 13 starts this season.
The oft-injured righty missed a month earlier this season because of a right shoulder strain. It was his sixth trip to the disabled list in his six-year career.