Yep, I'm another that is waiting for a professionally-made aero 'kit' ... or at least a few choice add-ons ... for popular models. Solid wheel covers and rear wheel skirts for late model Honda Civics are a great place to start.
My hat is off to the owners of 8+ year old cars and/or people with some experience fabricating their own bits. I just don't have the time, tools or know-how to make good looking aero bits for my 2-year old car. And with a car that new, I refuse to bolt or tape bits of sheet plastic or cardboard onto my car.