hi dentbombay,
iam a graduate of the colorado isp ....i didn`t really hear of any externships within the school itself....at least the specialty programs that are available within the school itself. we had the GPR , the newly perio program and the ortho in the third floor....
many of my colleagues had to go to different states for a week each (or so) for their ortho, perio, OMS externships.....Dr Harvan will excuse u from clinic during those times. overall, the program is pretty good and the facility you will be working in is probably one of the most up-to-date nation wide!
unlike other international programs in other schools where the foreign students will always be of 2nd priority to the school. the only minus they would have is probably that the requirements for graduation is crazy! and most of us had to RUN all the way untill the last day to be able to graduate ...but after that u realize its better than fighting for a chair for ur patient like what u would have to do in schools like NYU or BU .
the school also provides digital x-rays and chairside computer systems which i didn`t see in many other schools like : NYU, UIC, BU, Buffalo, Loma Linda, USC, Nebraska ...etc who (AT THE TIME OF MY VISITS) were much less advanced in regards to their facility and their equipments.
a lot of hard work is expected though!
good luck