www.frommers.com is a good online resource--just look up Nagoya in there for the main sites. A bit further afield, there's Cormorant Fishing at Inuyama and Gifu. Nagoya is also a good starting point for heading into to the Japanese Alps, or you could visit Tsumago (old post town on the middle road to Tokyo -- the Nakasendo) and carry on to the fine castle town of Matsumoto. Just Google for any of these names.