There are plenty of web sites for Champagne. Here a few.

http://www.champagne.fr/

http://www.moet.com/moet.htm?to=us/index_shock.asp

http://www.mumm.com/

Being close to Disney, it'll be very easy for you to get onto the highway to Reims and the Champagne region. It would be too lengthy to give you the route to follow, but look into this web page to get the right itinerary:

http://www.viamichelin.com/viamichel...MaHomePage.htm

As far as Versailles is concerned, you have to choices: Take the Francilienne south and circle Paris until you get on the highway towards Versailles. Horrendous traffic and not wortwhile but you might enjoy it. Be careful, radar for speed limit are popping up like mushrooms.

The best bet would be to leave the car at the next train station and go by RER to Versailles. It is easy and almost as fast as taking the car. I say almost because if you know the route, you might be a little faster by car. But definitely not worth the hassle.

Take the train at Val d' Europe:

http://www.ratp.fr/ParisVisite/Eng/pivi/f_pivi.htm

Have a good stay. If you need more info, just drop a PM