CC and AJ

The New York Yankees officially announced the signings of free agent pitchers CC Sabathia and AJ Burnett today.
CC in particular is an exciting signing, although he hasn't come cheaply at $161m over 7 years (and an opt-out clause after 3 years) - the richest deal for a pitcher in MLB history. The American League CY Young winner in 2007, he gives the Yankees a true ace at the top of their rotation.
AJ is a different proposition though. On his day he has incredible stuff, but his track record with injuries is worrying to say the least (particularly given that the contract runs for 5 years, meaning he'll be a Yankee until age 37). He was dominant against the Yankees last year though, going 3-1 with a 1.64 ERA in five starts. He's also 5-0 lifetime against the Red Sox, which is always welcome. :-)
Check out CC's site for more info, and the great coverage over at River Ave. Blues.