good place to buy sandals online?

[kerc]

I'm a size 11.5 in womens. I'm having a hard time finding sandals for the summer that meet the following requirements:
1. be 11.5 womens or 9.5 narrow mens
2. flat sole
3. (not a requirement) but I'd like them to either slip on or buckle (vs. velcro).
4. "dressy" enough to be fancy enough for college teaching at a community college but also work well with shorts kicking around with my 2 yr old.

I'm ok with tevas, but honestly that kind of shoe begins to stink for me after about a month of daily use.

ebay is certainly an option, but I hate not being able to return.

any ideas for places to buy birkenstocks that are cheap?
other suggestions welcome too.

[OliveGirl]

What about Chacos?

[judybean]

I'm going to lurk here on this thread... because I wear an 11/12 (depending on the brand) in women's shoes as well.

I have ordered some nice sandals from Eddie Bauer (only in the winter though, when on a huge clearance) in larger sizes... otherwise I have *gasp* a few PayLess shoes. They always have the bigger sizes.

[jeniferm]

I don't know what they carry in larger sizes, but www.zappos.com has an incredible selection of shoes, with free shipping and free returns. Their prices seem reasonable too, but I haven't done a lot of comparisons. The shoes I ordered from them arrived in two days, and I didn't like any of them. I went online and printed out a return shipping label, put them all back in the box, and I think UPS even came and picked it up from my front porch. Very easy!