Nothing new but just my implementation of great examples found on this forum and made 'my own' 
A LED-dimmer triggered with a motion-sensor and managed via PLEG on a VeraLite. The box is mounted under my bathtub as floor-lighting. PLEG takes care of the intensity depending on day- or night. The sketch has a watchdog routine for taking care of switching of might there never be an 'off' command coming in from Vera.
(Recreating this topic after the forum-crash)
When hek starting posting about this Arduino-project it persuaded me to buy a VeraLite. This is great fun! Because of all the new and good things in the 1.4 libraries that is what I started with and it worked first time. In the picture below there is still a NRF without PA and that didn't do it for me. The distance to the nearest node is too far for a reliable connection. So I've ordered a few new NRF's with PA and hopefully that will still fit in the housing.
Updates will follow
Finally a new DHT22 arrived from China and now this project is completely finished.
You have a sharp eye!
Have a good read at http://forum.micasaverde.com/index.php?topic=19263.15
It is all in there.