Yeah you can get non-iodized salt at almost any grocery store. Morton's has two varieties in the cylindrical containers that make for easy pouring: plain and iodized. Just get the plain one. Pickling salt is also fine, and in fact is slightly more pure than non-iodized table salt since pickling salt has no flow-enhancing agents.

Incidentally us BBQers use this salt to because iodine ain't so great for BBQ either...