Being Italian, I would have to agree with Koji's comment on brown shoes with black, grey and blue trousers. I have always done exactly that, and while I will admit I get the occasional comment about it here in the USA, over in Italy, you rarely if ever see a man wearing black shoes. I will say though, that the shade of brown is imporant when it comes to black trousers. I prefer the lighter tan shades, or the very deep dark chocolate shades. Some shades in between dont seem to look as good to me with black trousers, but thats just my personal opinion. Im sure it could be pulled off just fine under the right circumstances. To be honest, I dont understand what the fuss is about concerning brown shoes with black pants. I doubt I could find one person on this forum who doesnt think black and tan isnt a classic combination. Why wouldnt that extend to shoes and trousers?