For anyone planning a winter on the turbo, it's well worth checking out turbotraining.co.uk. For £50 a year with free Ant+ sensor it is a great tool which lets you sinc your HR and cadence sensors to calculate proxy power. It comes with loads of training programs and workouts.
I signed up for beta testing which offers the ability race online against others.
http://www.turbotraining.co.uk/group-turbotraining-beta
I'm not in any way connected with the website but thought it worth sharing.