I just looked at two bikes in their web site. It seems there are two main differences. Citizen has suspension fork and front derailleur. Front suspension doesn't make a lot of difference if you stay on the paved road, but additional two small gears(48 vs. 48,38,28) in the front make a big difference, specially if you haven't been on the bike for a long time and you are out of shape. Once you get used to riding your bike, lowest combination(48-34) on Commuter seems to be good enough for most inner city and suburban ride but not anything beyond. But the truth is, that's where the real cycling fun begins. You may want to look into the possibility of longer and variety of gradients rides in the future and the extra gears certainly help.
I would say the difference of $40.- will be worth it.
Last edited by allgoo19; 05-03-05 at 12:44 AM.