Hey there!. Been lurking for a couple of years and have learned a lot,so thanks. Been commuting on an oldie for a couple of years now and seeing as I'm gonna stick with it I want to pick up a new bike this week. Could some of you very knowlegable people please tell me which is better, especially the components..I've got it narrowed down to three and two of them are Treks. Is the 7.3 worth $130 more than the 7.2? And how does the Specialized compare?...Thanks very much in advance...

http://cyclesmith.ca/itemdetails.cfm...ogId=39&id=793

http://cyclesmith.ca/itemdetails.cfm...gId=39&id=1039

http://cyclesmith.ca/itemdetails.cfm...gId=39&id=1041