Are you looking for quilting fabric to make the totes, or double sided already quilted fabric to use?
Because even if I'm not thrilled with the quality, I'd hardly say that Joann's has a "small" selection of quilting fabrics.
So I think you must mean pre-quilted fabrics.
eQuilter has over 30 different patterns:
http://equilter.com/cgi-bin/webc.cgi...46110518607.a1
I don't think you're going to find any quilt shop that has hundreds of these as it kind of defeats the purpose of selling all the other "unquilted" fabric. <g>
This shop a few others (I don't know if they're included above).
http://www.quiltvillecreations.com/cgi-bin/Store/store.cgi?cart_id=2485385.16208.s0&product=moda-maypole&productid=moda-maypole-35082-11q&keywords1=quilted&sales=0&lastmenu=
That shop had a few other patterns. Just put "quilted" in the search box.
HTH.