If you're missing Portland Velocipede, two things for you to check out:
Fab.com is having a sale on Public Bikes for the next two days.
Rivendell Bicycle Works also sells nice things.
And while you're shopping, how about a bike map?
The first and only Portland Maine Bike Map highlights bike routes, lanes, and paths from Falmouth to Scarborough, Casco Bay to Westbrook - almost everyplace you can comfortably reach in an easy hour's ride from downtown Portland.