Well, I think you should be able to afford two weeks of camp with that amount of money. I used not even half of that to stay there three weeks, appartement, pass, food, party, everything. Seems like a little bit of instruction can't be that expensive.
Anyway, I looked a couple of camps up of which I could remember the name, but I doubt of any of them is usefull to you.
- DA Camp http://www.a-ride-a-day.com/
- SnoTribe http://www.lineskis.co.uk Don't know of they still come to L2A tho, don't think I say them past summer
Axis summer camp and Salomon Jib Academy, but I'm pretty sure they are French. Armada Freeski Project, but they're Dutch.
That's kinda all I can remember at this point, sorry I'm not more helpfull