Very nice tank set up.
Just so you know there is nothing wrong with MH they still work great, for us the cost of yearly bulb replacement and the monthly power savings it just made more sense to go LED. It is a big initial cost but (for us, we totalled up the costs) and after 3 years the light pays for itself.
Radions are expensive but IMO one of the best ones available. I have heard good things about maxpect razor led which is cheeper $400-500 but I haven't used one.
http://www.maxspect.com/index.php?op...d=20&Itemid=21