I have 2004 details here'
Paris Visite valid for RER, metro and buses. Also includes money off vouchers for science centre, boat tours, open top buses, shops etc.
{zone 1-3} 1day E8.35 (E4.55), 2day E13.70 (E6.85), 3day E18.35 (E9.15), 4day E16.65 (E13.70). This covers city centre.
{zone 1-5} 1day E16.75 (E8.35), 2 day E26.65, (E12.95), 3day E37.35 (E12.25, 4 day E45.70 (E22.85. This covers airports and disney.
Zone 1-8 also availible. Outskirsts.
You can get a seperate ticket for transport and entry to disney.
I have the Metro, RER and bus maps here if any questions about connections etc. Plus details of airport buses. I have travel by Ryan air into Paris so questions on that also welcome.
www.ratp.fr