IMHO it is more important to have a slime-green bike AND a great relationship with the LBS mechanic than your favorite color and no one to hold your hand when your wheels go out of true, you can no longer shift to the big chain ring, and your bike squeaks more than John Kerry's wife...
Hey, red's cool... Easier to match with standard, discount bike clothing as well.
BTW... If you are female, make sure you wear one-size-smaller bike shorts. This will help reduce aerodynamic drag enabling you to stay in front of the guys! :-)~