Hey dude, also remember that the Bianchi comes with some good pedals (LOOK) like I was telling ya on MSN.

How old are you? If I remember correctly you are my age or a little younger, so will have a little bit more growing to go, therefore the 57cm would suit you better perhaps? Go to the shop(s), and get them to fit you on both bikes, and test ride both bikes. Then try and decide.

Regards,
Brendon