The Nila is definitely an excellent instrument ...but VERRRYY expensive.
Lately I've started drifting away from my LED instrument of choice the last few years -- Lite-Panels (which I've used a few hundred of since they came onto the scene)-- and have been successfully using the Color Kinetics eWhite and iWhite instruments. I just used 100 iWhites on a studio I designed in D.C., but wish I used eWhites -- which I've used very successfully on 2 new studios for CBS radio (go figure)... and am using on a studio project in the Sudan.
Although I haven't used them on an install yet, I'm very impressed by the new ARRI "locastor" and "broadcastor" LED fixtures. Check them out.