Epic-- check out missionworkshop shoes for a good all-arounder walking, commuting, touring shoe. I basically live in mine, kinda flexy compared to some generic shimano mtb shoes, but are silent while walking, and can clip in or just as easily be used on platform pedals. and cost as much as any other quality non-biking shoe might.

and theyre seeeeeexy.

http://missionworkshop.com/products/bike_shoes/mens.php