Depending on who else is left, I'd take Halladay. I wouldn't worry about the IP, because like everybody said he doesn't throw a lot of pitches and doesn't have to over-power anybody. If you're going to worry, worry about the Jays facing NY 19 times after the AS break. And if it really bothers you, just trade him after the first half of the season. Remember that he didn't win a single game in all of April, and still managed to finish with the most wins in the majors. He finished the season on a 22-5 run, while maintaining respectable K numbers - 206. People are predicting a decline, and he very well could, but I don't see more reason for him than anybody else to decline.
"Jack, will you call me, if you're able?"
"I've got your phone number written, in the back of my Bible."