I've recently been accepted to MUA, to which I decided to apply after several months of research. I plan to go in May '03. While I can't tell you if it's the best school for you, I encourage you to keep an open mind to your options, continue your research, and make a decision that you are comfortable with based on your individual circumstances.
As far as FP, I have been reading a lot of statistical info....which you can view at the match site. (try accessing through AMSA, and similar organizations, I don't have the site at my fingertips at the moment). Anyway, the info. is all there regarding how many FP positions were available over the past several years, including the most recent Match of 2002. It also lists how many positions were filled by US Seniors, and by 'other applicants' which means those med. grads not from the US. That's inclusive of IMG/US, and IMG/non-US students.
The FP and IM positions are hurting for people. There are still plenty of unmatched residencies as I type this....I say this because I just visited the site and printed out the info last night.
From memory (so don't quote me), only about 35-45% of the matches were US grads. The remainder are IMG's and unfilled positions.
Best of luck to your on your research. FYI- as far as Carib. schools go, I've summarized from all my readings that ROSS, ST. GEORGE, AUC, and SABA are top choices. MUA is a newer 'sister' school to SABA and thus could be considered a riskier decision/choice for some, but keep in mind there are pros and cons to each school.
Oh, I found some links for you:
http://www.nrmp.org/ (Nat'l Residency Match Program)
http://www.aafp.org/ (Amer. Acad. of Family Practitioners)