Hotels I know nothing about, only a remark posted here somewhere that a few hours after the change of dates was announced, all rooms were taken already!
So best of luck with that.
Transport on the other hand I know something about
: the tramway is excellent!
Homepage of tramway:
http://www.setram.fr
Map of tramway (click on it to zoom in):
http://www.setram.fr/carte/index.php?verif=1
Take the tram to Antares and get off at Antares or the stop just before that.