Where to find beads?

[laikabear]

I'm knitting the Swallowtail Shawl (Ravelry link, sorry!) and I want to place beads instead of nupps. Anyone have a good online source for beads (or a brick and mortar store in the L.A. area)? This will be my first time using beads!

I am using fingering weight yarn (Berocco Alpaca Ultra) in a turquoise color and hoping to get 8-0 seed beads and a #13 crochet hook and to attach them as I go.

Here is a nice article about beading that I am referring to for help. I have never seen a size #13 crochet hook so if anyone knows where I can get one, that would be great, too. All mine have letters instead of numbers!