Don't mean hotels or restaurants. What cities or villages or worth checkin out?

There are a couple of online guides to that area, for example:

http://www.tourism-midi-pyrenees.co.uk/en/index.php

and the Blue Guides for that area of France are very good. Part of the fun of touring that area with a car is being experimental --- and also being flexible so you don't get caught in weather jams.

Some of the ski resorts and thermal bath towns (Ax-les-Thermes, Cauterets) may have their roads cleared year-round. But you really need to check beforehand.

The area is rich with caves and some cave paintings -- but check ahead for opening hours.

If nothing else, you can stick to the main superhighway and zoom down to the coast, taking in Castelnaudary, Carcassone and Narbonne en route. In off-season, without the tourists, towns like Collioure might be more interesting, and Port-Vendres might be hauntingly pretty with delicious food.

by the way, Castelnaudary has a reputation for being the home of cassoulet, and March is really the ideal time to eat it. This is an old thread, but it gives you an idea. You should double check on Chowhound for more recent restaurant recommendations:

http://chowhound.chow.com/topics/267739

thanks!