I've got a weekly list going on my blog (link at bottom of sig). There's quite a lot this week. For those of you who like food that tastes decent, you might want to check it out. I'll have an updated list weekly.
Oh, and to the moderators I link to this site on my blog. I hope that's okay?
I hate La Tortilla! Mission are okay. I really like Mama Lupe.
Netrition has $4.95 flat rate shipping. I usually have a grocery list where I order from them once a month and I stock up on this stuff. It's pretty cost comparable to the stores for me. I live in a teeny-tiny town and none of the stores carry this stuff. They delivered the tortillas for me, and they are pretty quick too. I then throw them in the freezer.