craftgrrl | Where to find a good selection of zippers?

My sister just finished a cute little knit jacket and now she needs a zipper for it. We've looked at both Beverely's and Joanns (and online Joanns) and the selection was terrible. (Also she needs to use the jacket type zipper as opposed to the standard zipper). We were also hoping to get it in a matching light blue color. I'm local to the Bay Area in California and was wondering if anyone knew of a good place to go around here, or a website that has a good selection. Thanks!

(edit: it's a child sized jacket. So a 14 inch zipper.)