A few things.
1. Apply to more than 14 programs. Its expensive, but given the high volume of applicants...and the luck of the draw of the application process...it doesn't hurt. Being able to converse about your research as well as good LOR are probably some of the most important things for your MDPhD app.
2. Apply early. This is generally a great rule of thumb, but I would start writing your personal statement in your free time NOW. Same goes for your significant research experience essay. You can have professors, friends, etc. start reviewing and editing your essays now, so that you won't have to worry about writing these when it comes time. You CAN submit your primary before your MCAT scores are in.
3. What are your plans for next year? 2011-2012 for you will be your "gap" year and some schools will want to know what you're going to do with it. I would suggest something research related. Many PIs are great about allowing you to travel for interviews while doing research in their lab.
Just got my MCAT score...
35M.
Just got my MCAT score...
35M.
Is this a problem for MD/PhD. I am concerned about the M, which took me by surprise. I know my essays were short...but I write to the point I guess I don't know.
Does this lock me out of top tier institutions? My personal statement is excellent, and I hear that along with any other essays help make up for low writing scores if they are well written.

This score probably neither helps nor hurts you. The writing subscore is the least important. Just keep doing what you're doing. Only a few applicants are ever going to be absolute shoo-ins; becoming one needn't be your goal.
IMHO, you should not be focusing on the perceived "tier" of any given institution. Focus on finding a program or department that you want to work in. For a start, look for journal articles that interest you, and then figure out if any of the authors of those papers are faculty at a school that has an MD/PhD program.
You can also use NIH's RePORTER website (http://projectreporter.nih.gov/reporter.cfm) to search for grant information. Input keywords that you're interested in into the "Term search" field. Or just type %T32% (with the percent symbols) into the "Project number" field, and it will spit out a list of active training grants.
If you really want to do research, then the "tier" of the institution where you get your degrees will matter far less than how good your research turns out. Trust me: People go to "top" schools but after they leave they have trouble getting funding because they were just being propped up by their PIs. On the other hand, plenty of people fail to get accepted by these "top" schools, but then have great careers.
That's why it's best to find research that you are interested in. Your commitment to finding answers to questions that interest you will allow you to succeed in your research career. If you go to a "good school" then you'll always have that name stamped on your CV, but it might not end up doing you much good if you're not really that interested in the research and so you're not as productive.
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