Post Bacc Student

I recently graduated from UCSD with a very low cumGPA of 2.9 as a physiology and neuroscience major and minor in psych. I struggled with depression/anxiety disorder and had a hard time managing grades. Now that I graduated I applied for the post bacc for pre health students at UCSD which has very limited space and is for underprivileged students, and I was not admitted. I now enrolled as a limited status student to do post-bacc work on my own for two years, I plan to begin to apply to medical schools next Spring so if I were to be accepted anywhere I would be looking at matriculation in FALL '13. I want to know what classes would be best to take just as many repeats of any C's and B's that I can? Or should I just focus on retaking my pre-med reqs or should I also repeat upper div bio classes I did poorly in?

A little extra about me: I volunteer as a research assistant in a dev. neurobio research lab for the past year and will continue to for next 2 yrs - I have a secured spot, possible publication from the position and have a great LOR from my PI. I have volunteer work ~100hrs, and shadowed an internal medicine dr. for a good while with another great LOR. Next month I am interviewing for a position in a clinical internship where if accepted I will get great clinical exposure, 260+ hrs and a possible LOR. I am currently studying for my MCATS and feel I can break a 30 with my progress so far (I score highly on Verbal it is my strong suit). I also will be shadowing an orthopedic surgeon the following summer/yr with a guaranteed LOR. I also have the usual extras of multiple club involvements - one which may stand out is a club in which we travel to Mexico once a month and provide medical aid to orphanages. As for my application I am a strong writer and think I can write great essays for the app and I will take advantages of all resources on my campus to have the essays revised and improve them as much as I can before submitting.

I know I am a weak applicant looking at my GPA I do not stand much of a chance. Although I will not give up and now that I am older and have gotten a grip over my depression and anxiety condition I plan to do my all and feel confident I will do my best to pull off A's during my two yrs of post bacc. Most threads I read here are people suggesting to others in my boat to also do an SMP I do not think that is something I want to do. If I don't do I still stand a chance? My first choice is an MD program but I am open to DO knowing that beggars can't be choosers I will take my second choice if were to be accepted as a DO student.

Any comments will be greatly appreciated, and if any one can offer advice on a tentative plan for coursework I should be doing during my postbacc I would really appreciate that as well.