Welcome to the boards, folks!
Westie, sounds like you got it made with a schedule like that! I´m not really sure about discount carriers originating from France, but Air France
is the major carrier based in Paris. You might want to have a look at what kind of deals can be found there.
Individual train or bus passes can also be an option if you´ll be traveling on the fly.
Also, look for a USIT student travel office. There´s one a coule of them there, I used it-just can´t remember the name of the location, and they can give you a good idea of all the cheap flights.