Just be sure that the school / program can issue a M-1 Student visa. Make sure it is actually the place you are sending your money that is issuing the visa as some providers "buy" visas from other schools.
Training in aircraft over 12,500 pounds is very difficult (if not currently legally impossible) as there is no procedure yet in place to comply with the so called 12,5 rule that was put in place Novemer 2001...it is in the works but currently you would only be allowed to train on aircraft over 12,500 pounds if you are a US citizen or have a previous type rating working for an airline...
Good luck!