Hey Poet, I read your message. Ft. Collins is on the front range, meaning if you ride east, you will have hills, but they aren't so bad and if you go west, you hit serious hills and mountains. Even though it is a college town, there is plenty to do for all people. I think it is a wonderful city. I can't comment on the bike lanes because I haven't ridden there much. I live about 40 minutes south of Ft. Collins, but I have been to the city many times. There are several LBS's that have many different rides for all levels. Here are a couple of good LBS in the area.
http://leescyclery.com
http://fullcyclebikes.com
Hope that helps. If you have more questions, feel free to ask, I have lots of friends there!
Heather