I just recently moved to the North Salem area in New York, and i am looking for a farm i could come take lessons at, I've been riding since i was 7, hunter/jumper & eventing. I was most recently a head groom for Buck Davidson and I now work for The Dutta Corporation.
You will be spoiled for choice. If you're not looking to lease, or don't have your own horse, Rachael Piggott has her own horses that she teaches on. She's based out of Donegal Farm in Bedford, and takes her students to some lower-level events and H/J shows (she usually goes along with Kerry Torrey, another fabulous eventing trainer). Holliday Ryals and Lisa Rex also train out of Donegal, but their clients all own or lease their own, for the most part. I can't recommend them highly enough. They focus on equitation/jumpers and hunters.