Nice lights. I just ordered the same unit except minus the moonlights.
One idea you may want to entertain is to get a hold of some dielectric greece (something like automotive electrical greece or the like) and make sure the bulbs connections are well covered in the greece. This will make your job of replacing bulbs much easier. I have read absolute horror stories.
Good luck with your LTA. I have had mine now for a couple of months under moderately poor lighting (1 48", 32W Coralife Actinic 03 True Blue and 1 48", 32W Coralife 10 000 Kalvin). Even with the lighting, my LTA has nearly doubled in size since I got him. Mind you, I also feed Mysis and Krill to him every other day. He has also taken a sick yellow tank and healthy One Spot Fox Face on me. All that was left in the AM was a boney shell of a fish that the LTA threw up the next day.
There is a lot of controversy to be sure about just how much lighting is enough. Some say lots lots lots with out having to feed, other the opposite. All I can say is that my LTA has never moved from his spot since I put him in the tank and he is at the bottom of my 75g. He, however, will appreciate my new lights.