I think Dan Johnson could push 30 hr's if he plays full time.......
Erubiel Durazo. Now that he'll most likely be slated to be the DH in Texas, he could be a real sleeper for the 2nd half, after he comes back fromhis injury. He won't hit 30 homers, but he'll hit at a 30 homer pace.
Watch out for Big Frank. IF healthy, he can still mash and can be had late in almost every league.