If you have allready completed your sciences, then a post bacc is not the way to go. Check out the SMPs (Georgetown, and BU being the most famous) which let you take medical school classes and grant you either a one year Masters Degree, or a certificate after one/Masters with an additional year.
Looks like you fit into the category for SMP. I wrote an official guide and posted it on this forum. Why dont you take a few minutes to look through it, it might be helpful
thanks guys for the reply back. is there any SMP with a linkage to a medical/dental school? i dont want to have a "glide year" after i finish the program and not know for sure if im getting in anywhere or not. thanks in advance!