The LBS let me take a madone 4.5 (a 2009) for a proper test - i rode it for 10 miles around roads and bumps I know - The carbon frame felt fantastic - VERY nice feel and wicked quick -

so ... I bought the 4.5 today (2010 - will be in next week)

- thanks to the good suggestions here - I'll just use it to commute sometime and Not worry about adding fenders or a rack - .. keep it lean and fast - MY Trek 7.6 fx has been a wonderful commuter and will continue to be a work horse.

Can't wait to put some serious miles on the 4.5 - woo hoo