HSBC will lend you the money... but remember, they want it back at the end of the day.
Think it through very carefully, why have you decided to train in the states? Be careful with quotes that you get, this may be a very rough guide, you will need money for accommodation (if not already provided) general day to day things, a flight home etc.
Have you thought of a modular course in the UK? it could prove to be cheaper in the long run.
Which ever way you go, good luck with the training!