Hi there,
Your post caught my attention because I am a recent Purdue graduate with a B.S. in biochemistry as well who will be attending podiatry school this fall. I can give you some advice based on what I went through in the application process; other people can add more info/correct me if they would like.
First, are you applying for admission in fall of 2010? The AACPM application opens in early September and is based on rolling admissions, so the earlier you apply the better. I would start the application process as soon as you feel comfortable doing it, even if you don't have an MCAT score yet because you can always add that in later.
Second, speaking of MCAT scores, some podiatry schools accept really low scores which actually surprised me. This shouldn't affect how you approach studying for the MCAT though because if you're afraid your GPA is a bit low, a higher than average MCAT score could somewhat balance that out.
Third, speaking of GPAs, I think your GPA is about average in terms of what podiatry schools are looking for. I think most of them want to see something at least around a 3.0. Also, I think your school/major plays a big role in how admissions committee members look at you. A lot of people I interviewed with told me that they knew Purdue was a tough school and biochemistry is a tough subject so keep that in mind as well.
Lastly, I would continue to shadow the podiatrist you mentioned and possibly see if you can get a letter of recommendation from him/her, which is something some schools actually require.
I hope this helps. Good luck fellow Boilermaker! (I'm assuming you went to Purdue because of your screen name 🙂)