Tom Cruise's Collateral suit is pretty swank. I don't go with belt loops myself since it lends a cleaner look. Side adjusters are a nice alternative since they're discreet. Go for the pocket square, they add a dashing touch with or without a tie. Connemara pulls it off damn well! According to some rule somewhere you shouldn't wear brown shoes or grey at night, but fuck that. If you look good, that's all that matters, IMO.