Hello new to the forum and semi new returnee to commuting. I read about 9 pages fo this thread looking fo an answer before I got lazy and just decided to post. In the past I have always ridden MTB's mostly crap but the GT Palomar I have now is ok. I want to get a new bike for commuting because the GT is actually on loan from a friend. I ride about 16 miles round trip soon to be twenty (I'm moving). The ride is on Broad Street in Philadelphia which is a busy arterial with a decent but not excellent surface. I don't want to spend alot more than $400 but I do have some flexibility there. I don't want something ultralight or high performance just something slimmer than the behemoth I have now. I want whatever I get to be pretty durable because I tend to be a pretty rough and tumble guy. I am 5' 11'' and 190. I can use craigslist to get something used but I am not adverse to something new if it fits my price range. I was thinking of seeing what I can find in a used steel framer maybe and old fuji or Panasonic. Any suggestions?