I have a typical midwestern US accent - not a strong Chicago one (they stress the 'a's in words, i.e. Chicaaaaago).
Basically, it's your standard generic accent heard in many a movie or television show. However, I do have a slightly different inflection now when I ask questions and say certain words which I have gotten from living in England for the past 2 and a half years. My friends get a kick out of it when I go home.