Just to reiterate a few names already mentioned.
Harden and Bonderman are definite breakout candidates. Bonderman especially will most likely be available in most leagues at an excellent value. I'm definitely targeting him in my drafts. He's still risky, but had a great September (42 2/3 IP, 42 Ks, 14 BBs, 2.53 ERA). Small sample, I know, but he's young and let's hope it's a sign of things to come.
Other Tigers pitchers to keep an eye on include Robertson. Should be solid, though nothing fabulous. My reservation is that he'll probably still be prone to blowups where he just gets hammered. Maroth and W. Ledezma might also be servicable, though don't get too excited.
And heck, may as well list Haren. He'll get a shot at some major innings with the A's. If he's available late in a draft grab him, he's a good risk with a lot of upside.
Consider Bronson Arroyo too, although with his WS noteriety he'll probably be taken way too early.
If you are looking for middle relief guys to increase your K/9 rate, and lower your WHIP and ERA then don't forget Yhency Brazoban, Kiko Calero, and, as mentioned, Mike Gonzalez.