Thanks for replying, guys!
I started digging around, and it seems like Yahoo Japan has a very good restaurant guide by the city.
Here. The thing I wanna do is to make reservations early, as I suspect most of them will be full during the holidays (24 through 2nd)
Do you guys know if restaurants are usually closed during christmas and new year or do most of them remain open? I would hate to go over there and find out that all the shops close on 1/1 -.-