We have used this van service several times and have been quite satisfied. You can reserve online, and they will meet you at door 8 of Terminal 2E. Their rate for 4 persons is 57 Euro. Door to door.
A taxi would be a bit more, you need one of the larger taxis (about half of them are these) and your rate with luggage charges would be around 75 Euro, depending on traffic. You will also need to walk to Door 12 and wait on a taxi line.
We prefer the reserved vans.
http://www.parisairportservice.com/?lng=en
Wow, 1st time in Europe doing Paris. Get ready for extended adrenalin rushes!!