I have a pair of Shimano SH-M034's (size 45) that I've been meaning to give away. I like them and just bought a very similar new pair, but they were just a tad too small for me and made my big toes hurt after a long ride.
They look like this: http://www.cambriabike.com/Images/product/shim_m034_kaki_grey.jpg
They're in good shape and I'll leave the cleats on if you want them. I think they're pretty comfortable for walking around in, although for a pure commuting shoe I can't recommend the DZR's highly enough. I have a pair of concubines that I wear all day every day, you'd never notice they're bike shoes. I still use the Shimanos on longer rides though.
They're free if you want 'em... if you don't want them, the offer is open to anyone.