Not sure exactly what you are looking for, but I found a nice fixture here Fluorescent Aquarium Lighting Fixtures
I don't know what size you need, but I got the 30" dual T5 for my 29g. It ended up being around $45 including shipping. It would probably be around $60 if you needed the 48" fixture. I thought it was a knock off brand, because it says Aqualight on the website, but it is actually a Coralife fixture.
Again not sure what you are wanting, but I think you'd probably be happy with one of those fixtures. Hope that helps. Good luck