Affordable Summer Program for High School Junior?

<p>Hi! I'm going to be 15 in June and a Junior in 2010-11 and I was wondering if you know of any good summer programs that are affordable, preferrably around $2,500-$3,500 for a month or 3 weeks? I'm thinking of going into the medical field so if any of the programs relate to that field itt would be great. I'm also fine if the program is outdoorsy and/or abroad.</p>