I got a Current USA Dual Satellite for my 60 gal (48" long) and I am happy with it. I also have a Current USA Satellite for my 30 gal (30" long) and I am ok with it. I wish it had the actinic / sun control as the Dual Satellite has. The Dual Satellite has seperate plugs for the actinic, sun, lunar and fan; so you can control each of them independantly. I think I spent about $200 on mine from the LFS.
btw, if you get it, don't believe that it doesn't come with mounting legs, they do!