I really like to spend time in the 6th arr where the nightlife is great with tons of bars, cafes and restaurants.
Try this place; great food
If you like veal kidneys - it is the best I have had outside of Lyon.
They also have more "normal" food.
http://www.paris-best-restaurants.co...urant/zi111744
Another restaurant with a nice french menu albeit a little more touristy is
http://www.vagenende.com/