As mentioned in a number of threads, the options for the DIY enthusiast are now very limited as the industry has geared itself more towards the professional installer.

Presently the choice is one of getting a newer Logitech Harmony or one of the smartphone/tab apps. However, mdavej believes there maybe a dealer or two prepared to supply the software for the professional URC models (though note Daniel's post here) and buzz makes mention of fringe controllers, but doesn't offer any makes or models.