I'm in Philly too, and just want to put it out there that it is easier to homeschool here than many other places, I think. I work 10-20 hours per work while homeschooling because there is a wonderful drop-off day program for homeschoolers nearby. There is a nice group of gifted kids who go there, and the philosophy is very conducive to gifted free-range learning. Just thought I'd put it out there. PM me if you would like to know more.