What city/street bike should i get?

i am a college student in a rather hilly campus and i enjoy going on long bike rides, during the summer when im home i go on a lot of trails so a bought a specialized crosstrail now i love the bike and am going to keep it but i am looking into buying a lighter bike for those long street rides and getting around... show more i am a college student in a rather hilly campus and i enjoy going on long bike rides, during the summer when im home i go on a lot of trails so a bought a specialized crosstrail now i love the bike and am going to keep it but i am looking into buying a lighter bike for those long street rides and getting around campus, i like the flat handlebars and the feel of the crosstrail but i would like it to be lighter and to have a better gear set up for street. i like the idea of a carbon fork also. these are the tree bikes im stuck on, i have test rode the sirrus and the quick and like both of them a lot the quick felt a bit lighter and is a bit cheaper to so i was just looking for opinions and if anyone has any ideas

http://www.specialized.com/us/en/bc/SBCB...
http://www.trekbikes.com/au/en/bikes/tow...
http://www.cannondale.com/bikes/recreati...
Update: i don't really care about brand but i would feel so much better about buying a off brand bike it i could test ride it first or something, and the shifters are kinda important to me
Update 2: what about this one

http://www.cannondale.com/bikes/recreati...
Update 3: how about the Fuji bikes
http://www.performancebike.com/bikes/Pro...
Update 4: ok that make sense only difference i knew is that road bikes have higher gears and are a lot lighter, i found a performance store near where i live, im going to see if i can test ride one this weekend. my only concern is getting use to riding a bike that cant take as much of a beating as my crosstrail can but i... show more ok that make sense only difference i knew is that road bikes have higher gears and are a lot lighter, i found a performance store near where i live, im going to see if i can test ride one this weekend. my only concern is getting use to riding a bike that cant take as much of a beating as my crosstrail can but i cant wait to have it out on the open road
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