Doesn't seem that many folks have experience with the Nova. I bought one about a month ago, and I like it. It seems well constructed, good features. But I haven't used it over a tank yet. I'm still getting that part of the equation together.
I bought mine from Foster & Smith, good price. As for the bulbs, I went with 2 x 6.7K and 2 x 10K. It looks alright, but I wanted to go with the 10K and 2 Planta tubes. If you can find those, I've heard nothing but good about them.