Graeme Street has some great training programs. Many people are already using TrainerRoad to do his Cyclo90 workouts using the free ride workouts. More CycloCore options coming soon.
If you purchase the CycloCore DVD's without the digital downloads of the videos, you are still able to use them with TrainerRoad. Simply play the DVD in an external player, and time the workout and video such that they are in sync.