I'm putting together a 40BR right now, too. It's a nice-sized tank. I really like it because it adds a lot of depth and swimming area to the tank. It's not as easy to light because it is deeper, front-to-back, so more bulbs may be needed if using PC, T-5, or any other tube-style fluorescents. But I think it'll be a lot easier to get a nice aquascape in there than say a 55G tank that's long and narrow.