M.O.
C.,
You didn't say if you've taken her to be fitted at a good shoe store? We love Stride Rite shoes and they take the time to ensure the fit is good. Because you have a "special need" you're probably going to have to pay more.
I really think that it's "worth it" to get the right fit - especially if you need wides. Perhaps once you find a "good shoe" you can find it cheaper somewhere else for next time...but for now, pay the money to make sure your daughter's feet are being taken care of.
You can also call The Walking Co (at Woodfield) to see if they have kids sizes. I was just referred there by fellow Mamasource Moms and LOVED IT. They have Eccos, Danskos and other high quality shoes, but I don't know about kids' sizes.