Shira,
Go for it.
I think you have a very good chance of getting in. I certainly don't think your GPA will hold you back as long as you have a MCAT that is at least average and some good LOR's.
I just got into UNECOM 2007 with undergrad scores like yours. I'm 31 yo and have been out of school for 7 years. Because of this, I think the school was willing to overlook some of the low scores on my transcript (academic dismissal in first year of college, ouch).
My recommendations:
1. Find some docs to shadow. I think this is big time important. Try to find some that are grads of the school you are looking at (CCOM?). This will show you whether it's a job you want, show the school your level of commitment and that you are making an informed decision, and will get you some folks to write LORs for you.
2. Take the MCATs in May. Taking them in August puts you behind the eight ball time-wise. You want to get to the admissions office when they have lots of seats left. Study the stategy of the test. Don't waste your time studying the general knowledge crap. You already know that stuff. Most important, RELAX. They are totally trying to psych you out. Fingerprinting, ID cards, hot room, no air; none of this is necessary, but it is a stress test. Just go in and reason out the problems and have a little fun.
3. Make contact with some of your undergrad profs that hopefully remember you. They can be a great source for letters and advice, as the have doubtless recommended other students to med schools.
4. Volunteer whatever time you have left. One night a week in the local ED would be good. This needn't be a learning type position per se, but just something to show, again, your dedication to a life of service.
Good luck, you'll do fine.
"Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and Determination alone are omnipotent."
--Calvin Coolidge