Hi, I was wonder which of the smaller planes being used by airlines today (anything smaller than a DC-9, for example the CRJ, ERJ, ATR, BAe 146, Dash-8, etc.) have enough space in overheads and under the seats for normal-size carry-ons (the size that's allowed on DC-9's, 737's, and up), and which ones have you drop them off with a guy that puts them on right as you get on the plane? I've always heard stories of the latter, but from some of the photos I've seen, they seem to still have at least some overhead space. I'd be curious to try some of these little planes sometime, but want to be sure ahead of time what the policy will be. Also, which ones do or don't have seat width and pitch as good as a DC-9, 737, etc.?