I did a foundation year. PM me with any specific questions. I thought it was a great program, really really glad I did it.
I'd stay away from the military schools (what my B&G officer, a SH-60 pilot, reccomended) and he was totally right. No need to have a 10th grade girl yelling at you for a year before plebe year.
I went to Peddie, and it was an adjustment, but I enjoyed it looking back. Most of the MAPL (Mid Atlantic Prep League) Schools were pretty good, and I think a bunch of them are foundation schools: Blair, Peddie, The Hill School, and some out of the league I've heard good things about like Kiski and Kent.
Again, PM with any specific questions.