If you want to go to Pharmacy school in Fall 2017 apply now. Take the PCAT ASAP if so. You can sign up late for the september testing period (~$250) or wait until October testing period which would be ~$210. Take it as soon as possible and apply as soon as possible if you want to go to Pharmacy school next fall.
I'm not sure about the cheapest top schools. It depends on where you live. For example, University of Kentucky is cheapest for me since I live in KY. It's around 20K vs. 40K out of state and it's one of the top 6 schools.