Just checked out some more SageTV plugins. The main knock on SageTV is it's UI but they've opened up the software to allow for 3rd party plugins to take over the UI in most areas. These are taken from the MovieWall plugin - pretty awesome stuff so far:
List View
3D Wall View
Wall View
There are plugins to automatically download the fan art backgrounds and everything. Just found another plugin that runs a web server interface so you can schedule your recordings from work, your phone, whatever. Great stuff.