MOOP!

One bit of advice which is hopefully not needed: Figure out the accessories you're going to need and their cost before you actually hit the Big Red Button; when I got my last bike, the initial quote ended up being a ways lower than the final price (not the salescritter's fault--I kept faulting in "Oh, I need this, and this, and this" during the process). I considered carefully writing down everything I added to the bike before I was done (mirror, kickstand, frame for paniers, pedal clips, and there were several other things) so that I didn't have the same experience the next time I bought, but didn't since I don't expect to buy another bike for a good decade or so :-}.