I spent a week at this quilt camp in 2010:
http://www.quilting-adventures.com/
I took a class with Marsha McCloskey. Everything about it was wonderful. Nice rooms, three meals a day, small class size, lots of individual instruction, and intense learning with the opportunity to quilt from dawn to the wee hours if you wanted.
What I learned was life changing. I hadn't finished a quilt before I took this camp. There were also quilt teachers taking the camp in the same classroom. We were all happy with the content of the camp. Many people make it their annual vacation. I'd love to go back again sometime.