Went to Sagada September 2009 with a group of friends.
Took the overnight bus to Banaue then a private Jeepney to Sagada.
Stayed at the Residential Inn (cheap, clean, nice people, unlimited sagada mountain coffee, and water heater!)
Convenience store across the street to buy snacks and beer. Bana's Cafe (best place to get a meal in all of Sagada is just next door too) I would go back to Sagada just to eat their Pork Steak and Vegetable Rice again. They also have great strawberry yoghurt. There are many places to eat cheap but we went back to Bana's 3 times.
Sumaging Cave is a MUST do. It's not an easy caving experience but just challenging enough to make you glad you did it. Visit the hanging coffins after as it's on the way back to the Inn.
We were only there a short time so that's all we go to do.
We took the Bus back to Bagio then changed over to another bigger bus headed back to Manila.
Over all this trip was a great experience, but it's not for those who can't take a looooong bus rides.