I'm just back from the Adventures by Disney Enchanted China trip, and I can't say enough good things about Adventures by Disney. It was an amazing trip! My journaling reads, "Airfare to China-$4500, Fee to Chengdu Panda Refuge-$2000 Yuan, The look on Julia's face while holding a baby panda-PRICELESS!"
I will also link to the Adventures by Disney thread under General Disney.