Flarechklvl,
I have been using AAS in Gloucester, it is a good set up that gets the written exams out of the way. From what I have found out so far it's a neat trick to get a permit to work but it can be done. I am using a company in London called Visa Plus, they claim to help the process along, stay well clear they certainly have done very little to help so far and are very expensive.
As far as the practical aspects of the license are concerned I have found a Flight School in Texas called Stinsonair. They are being very hepful so far,contacting the FAA on my behalf etc, and do both FW and Rotary.
Oilcaptain is correct as far as family and visas are concerned, they need to be, parent, child over 21or spouse to sponsor you.
Best of luck