Welcome to the DIS. Sorry your very first post hasn't been answered too quickly, but after reading it I have been keeping my eyes open for any information for you. I don't know how useful this informationactually is, as I have always used the shuttle bus and find it a good way to get to DLP, but I found this on the DLP Guidebook
http://www.mousekingdom.de which is a great site if you've not already seen it.
Another option is to take the TGV, which stops at the TGV-train-station of the airport located in Terminal 2. Guests arriving / departing at Terminal 1 are offered a free shuttle bus connection to the station - just follow the signs to the shuttlebus stops / the TGV-station. The TGV offers (with roughly 10 minutes only) the fastest connection between the airport and the resort - and is still surprisingly good priced. Depending on day and time the ticket can be cheaper than the VEA-shuttle and even the RER-trip and is never more than just slightly more expensive than the shuttle. All TGV-trains heading into the directon Paris stop at "Marne-la-Vallée / Chessy Parcs
Disneyland" which is located at the plaza between the Disneyland Hotel, the Walt Disney Studios and the Disney Village, next to the bus-station from where the free shuttle bus takes you to the Val de France Hotels and the Disney Hotels with the exception of the Davy Crockett Ranch. From there a short walk also takes you right to the entrance of the theme parks.
To check departure times of the TGV visit
http://www.voyages-sncf.fr, enter "airport CDG" as departure station and then choose the TGV option among the offered stations. As destination enter "Marne La Vallée" and choose the SNCF option among the offered stations.
Hope this helps
