I need to get a pair of casual shoes?

Hi everyone, I wear sneakers every day (puma, adidas, converse, etc.), but I want to get some nice (almost dress) shoes.. like some black eather shoes or loafers. I want a pair that I can wear casually with a polo shirt and jeans as well as with a shirt and tie, maybe even a suit. I know alot about sneaker brands, but not so much about more dressy shoes. I need to keep it under $150 though, at least for now. I know there has to be some shoes that are half decent for the price.