I suggest you go to places like zappos.com, input in the search field, the brands and shoe you are interested in and read the reviews. I am going to break from the pack and recommend the Keen brand. I got a pair on recommendation even though it wasn't a style at the time that I would have ever chosen without recommendation less then a year ago. I have literally been wearing them every day since. If I wear another shoe, my feet say... put me back in the Keens! You can find them on sale in your price range. They have orthopedic support, they don't slip, and they have a patented toe protection so it's like a force field for your feet. They're a wider base than most shoes so very stable and better for your posture. I just recently got two additional pairs and am totally hooked on how comfortable they are, just go a half size larger than you're normal shoe size.
Maybe you should try a pair of Danskos in the house for a week, and a pair of Keens or whatever other brands you're interested in. You'll know pretty quickly what works best for you. Zappos actually has free shipping both ways and encourages you to return them if they don't work for you.