Just north of the main SNCF station is the Place Liberation. It's a pretty if busy traditional square opposite the facade of the old Gare Du Sud (the new station has relocated a few hundred yards west). There's a terrific market that's a lot cheaper than the tourist trap that is the Cours Saleya and there's a proliferation of non-touristy cafes and bars as well as an excellent seafood brasserie on the corner of the Boulevard Jean Garnier. For a taste of real urban France in a city obsessed with bling, it's a real find.
Place Liberation
Avenue Malausséna
The new tram stops there although it's perfectly walkable from the SNCF station.
Google map: tinyurl.com/2vqqhe6