Originally Posted by
wxduff
Based on your requirements I would recommend a multi gear bike unless you are in good shape and can go with a single speed. Both of these in 50cm would be good choices
2011 Gravity Avenue B $279
24Spd MicroShift Road Bike Semi-Compact AL Frame, Aero Fork, Aluminum Rim Wheels
http://www.bikesdirect.com/products/...y/avenue_b.htm
2010 Windsor Wellington $299
Shimano 14 Speed Road Bike, Multishaped Aluminum Frame Tubes, DuraForte Fork
http://www.bikesdirect.com/products/...ington1_IX.htm