Hi Jeff,
With that many switches and the need for a reliable system that can handle the scenes and whole house scene control, what you really need to get is a Lightolier Compose system.
We sell all kinds of X10 compatible products and by far the most flexible and reliable is the Compose system. With the Lightolier X10 firewall installed, you take to as close to a bullet-proof system as possible without having to go to a dedicated wired system.
Please feel free to contact us with your questions or to help you configure your system. We are a factory trained Master Distributor for Lightolier Compose systems.
Thanks,
Martin Custer
Martin@AutomatedOutlet.com