To the OP,
I am not sure you have been hanging around these forums or even an emergency department, but if you have you should have come to find that people in EM are generally easy-going, fun people who like to give each other **it (all in good fun, of course). As a group, we tend to (and have to) have "thick skin" and enjoy giving each other a ribbing every now and then.
That said, people in EM generally aren't the type to get hung up on "top programs" b/c most feel that the top program is the one that fits you best. Unlike Internal Medicine or Surgery where you are clamoring for coveted fellowship spots, it really doesn't matter all that much where you trained (within reason). I would definitely try to match at a "known" place/University setting instead of St. Joe's Community Hospital, but more than anything your marketability for a job post-residency moreso comes down to:
a. Can you play nice with others and be a pleasant guy/gal to be around?
b. Are you a good EM physician?
c. Can you "move the meat"?
Best of luck.