Just revisited this thread. Thanks for all the contributions, some better tempered than others!
I make no bones about it, my motivation is to build hours, however, I see PPL instructing as part and parcel of the route to a well-paid airline job. As long as I can afford a roof over my head and some beer money, I'll be contented.
I approach instructing with tremendous enthusiasm. I will not be perfect, and my efforts probably won't match those who have seen 100's of students through their training, however, I'm positive I'll soon get into the swing of things.
As a UK citizen, part of the attraction of flying in the US is the dynamism of GA compared to the UK. You don't have to spend weeks on end to get a few hours, hanging around some grotty old portacabin or rotting WWII bunker, listening to Ret. Sdn Ldr Handlebarmustache eulogise about the days of the sextant and explain why he believes that GPS is far inferior.
Fingers crossed for that J1 visa!