I don't have large feet (a narrow 10 1/2) so if your feet are larger, I would consider Certified's suggestions.
When I was looking for shoes that would allow me to press only one pedal at a time, I found these (
http://www.lemanslewomans.com/shop/Jim-Clark-Suede-Casual-Driving-Shoe-by-Nicolas-Hunziker-CL5004.html - not necessarily the best place to buy them). Now, I have to say I was conflicted. They attract a fair amount of attention. That was not my intention, I assure you. In fact, I actually bought these because they were a little cheaper than other options I found. In finding them for this post, they seem to be more expensive than I remember, but then I may not be remembering that well. They are designed to be a homage to the Jim Clark's Lotus 49 and its maiden victory with the DFV, which is kind of cool, but then some people wonder what my bowling score is.
They are pretty comfortable for most things but they are not for walking long distances.