I'm campaigning for Jon Garland as 3rd starter (or 4th if Andy re-signs).
The 30 year old signed last season for one year and $7M with a $10M option. I see no reason he'd expect significantly more than that for 2010. He'd be a respectable 3rd starter and easy to deal if all the other pitchers come on strong and push him out of the rotation.
He's a Type B free agent, so while the Dodgers would receive a sandwich round pick, the Yankees would not sacrafice a draft pick.
If you're worried about guaranteeing spots in the rotation to both Joba and Phil, and you're not excited by a 4 or 5 year commitment to John Lackey, or if you're skeptical about Rich Harden and Ben Sheet, then Jon Garland is your man.