Medical College of Georgia PA Program - Difficult to get accepted?

I am currently a sophmore biology major, interested in becoming a PA. I have a 3.3 GPA and would like to attend the Medical College of Georgia's PA program. In the fall of 2010, I will have completed all the required courses as stated on MCG's web page. They require 90 hours and a minimum 100 volunteer hours. However, my advisor says that my chances are better if I have a Bachelor's degree. I was wondering, if I should get an RN degree or continue with the Biology program (it will be the same amount of hours). I am going to apply, hopefully to be accepted with 90 hours. If not, do you think getting an RN degree would improve my chances. Does anyone know how hard it is to get into MCG's PA program?