Disc brakes are ideal in Portland... my wife has lived there for over a decade and although she rides less than I do goes through rims far more quickly due to the wet climate.

You can ride year round in Portland and fenders are almost mandatory as are really decent lights as Portland is a darker city then most and does not suffer from as much light pollution.

The low spoke wheels on the Cannondale are a deal killer for me... a commuter should have a decently made conventional wheel set that will handle the use you subject the bicycle to.