Best way from Paris to South of France?

We have accommodation for us in a town between Salan-de-Provence and Aix-en-Provence, South of France. We will be departing Paris on 28/7/11. What will be the best/easiest/cheapest/nicest way to travel from Paris? should we catch the train or fly to Marseille or should we catch the train or fly to Nice? once we... show more We have accommodation for us in a town between Salan-de-Provence and Aix-en-Provence, South of France. We will be departing Paris on 28/7/11. What will be the best/easiest/cheapest/nicest way to travel from Paris? should we catch the train or fly to Marseille or should we catch the train or fly to Nice?
once we get to ether Marseille or Nice we will be hiring a car and driving to our accommodation between Aix and Salon.
how long does it take to travel by train to Marseille from Paris and how long does it take by train to Nice from Paris?
the town we are staying in is apparently a 30minute drive from Aix. how long would it take to drive from Marseille and how long does it take to drive from nice?
We want to hire a car because we do want to check out a few towns south of france while we are there, nice included as one of them.
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