My honest answer: I don't know. A year ago, I would have said that the GPA isn't so important; now, I'm not so sure.
Right now, I think the pre-requisite GPA is the most important hurdle of all, because most medical schools do weed people out based on their marks. Because of that, several people I know this year were not offered interviews, but rather received automatic rejection letters, because they failed to meet the GPA threshold. This will vary with each individual medical school.
Because of this, your MCAT score might not even come into play. Perhaps your best bet is to contact the individual medical schools that you are interested in attending. I have links to the English-speaking medical schools on my web-page. I wish I could be of more help.