You're going to have a blast! I took my wife to Paris for her birthday in 2001. You may already know this, but all the national museums are free on the first Sunday of each month. So this includes all the major galleries such as Musee d' Orsay, the Orangerie, Musee Picasso and the Louvre amongst others. Get there early as the line at the Louvre was rapped around the place twice!
playbak added 14 Minutes and 3 Seconds later...Double Post Merged Below
Ooh. I just remembered what I wanted to tell you. I have the Black Rapid camera strap.
http://www.blackrapid.com/
I wish I had this strap last time I went to Europe. It's so much more comfortable than any neck strap I ever used. You wear bandolera style, but gives you the complete freedom to bring the camera up to ready to shoot. It has a nice balance, even with a big heavy lens like the Nikon 70-200. If you plan to be walking around for more than an hour, you'll love this thing.
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http://www.flickr.com/photos/playbak
Nikon D300, Nikon D80
Nikon 28-70mm f/2.8 AF-S, Nikon 70-200mm f/2.8D VR G-AFS ED-IF
Nikkor 50mm f/1.8D, Nikkor 18-200mm f/3.5-5.6 G ED-IF AF-S VR DX Zoom
Tokina 11-16mm f/2.8 AT-X 116 Pro DX
Speedlight SB-600/SB-800