Originally Posted by Catalystik

1) It's common these days for folks to take five years ot gradeuate due to required classes being filled, or change in major. If you need an excuse, then add another major or a minor that would make it easier to get the upper-level courses you want. If you do graduate and then do a postbac at the same school or at a cheaper state school as a nondegree candidate, you don't have registration priority (and may not be eligible for loans) unless you become a candidate for another degree. You don't have to finish another bachelors, though, it's just a paperwork thing.

2) The path you need to take will in part be determined by how strong your MCAT score is. A very high score compensates for a lower GPA to some degree (as long as you don't end with a downward grade trend).

3) There are a few types of postbac. There is an informal type where you take upper-level Bio at your own pace at any school you like. Formal, more expensive programs, meant for GPA boosting, that also come with excellent counseling and great LORs. And there are SMPs (Special Masters Programs, linked to med schools usually, where you compete with current first year med students) which are not a traditional masters, don't lead to a usable degree, very expensive, but are high reward if you earn a great GPA (aim for 3.7+) as they can completely override a lower undergrad GPA. Most require an MCAT score of 30+. Here is a list: http://forums.studentdoctor.net/showthread.php?t=640302