Hi -
It sounds like it will be a while before you'll be able to rotate in the US.
You shouldn't have a problem setting up clinical rotations, but most (if not all) American medical schools will require that you have completed some basic rotations first (medicine, surgery, peds, etc). If you won't be in the clinics for another 2 years, then it'll probably be 3 years before you'd be eligible to come here.
As far as post-graduate work, you'll need to pass the USMLE Steps 1 and 2 before applying for an internship. As an IMG, your scores will be important, and you will need to rock the exams. It may be realistic for you to do a residency in less-competitive fields (e.g. medicine). However, it will be virtually impossible for you to pursue more selective fields (e.g. radiology, plastics, neurosurgery, etc). You will also need to secure the necessary visas on your own before residency programs will even look at your application.
Good luck,
doepug