Much advice given, and having been here twice in the last two months - can only confirm that your gear is sufficient. I used a 5D2, 17-40mm, 24-105mm, and 70-200 f4 IS on the first trip. Left the 70-200mm behind for the second trip, but changed to a 16-35mm. Wish I had had a fast prime (50mm/85mm).
As has been said, add a light weight tripod. You will not be able to use it in museums, galleries etc, but once on the street at night it will be a life saver. Don't forget the remote!
1) A GPS can be useful as one tends to get lost amongst the many streets. The maps do not show all the streets.
2) Learn how the Metro trains work - it will save time. Besides much walking - the Metro gets you around very efficiently.
3) Eiffel Tower - best late afternoon with ground shots in the evening. Find Trocadero (Metro) for a magnificent view of the Tower across the Seine.
4) Eiffel Tower - Take heed of the warnings about pickpockets. They are very very quick!
5) Once the main sights are done, visit the Les Catacombes. Contrary to comments on the web - they are open. Metro Denfert Rochereau and opposite the bus station. Very dark, and you will need the fast prime. I had a tough time with the 16-35mm (light and focusing). No flashes allowed.
6) Allow a full day for the Palace of Versailles
7) The Louvre is astounding. Friday's are good as it is open until 9:30pm. Normally 5:30pm. There is much to see, and best done over a few days.
8) Great map http://www.aviewoncities.com/maps/paris.htm
9) The ISO capability of the 5D2 will be pushed to the limit, but that is one of the reasons you have one.
10) Comfortable walking shoes!