Please go to Forums » Professions » Crafters »
And post your chosen professions. If you don't have a main profession, please consider choosing gathering professions to assist the raid effort.
Example: Raid potions and flasks alone = 2000+ herbs per raid night.
We aren't asking you do it all but anything you can contribute in herbs, or cooking reagents, or other raid buffs or enchants would be help the load on all the raiders to be tolerable.