Have you looked at the finnex fixtures? the fugeray would work I think for you setups(and be within your budget) assuming you don't add CO2 and the Ray2 fixture should work if you do. Just a thought. I just started using a Ray2 on my 40B so it's too soon to tell you how good it is, but it seems to be pretty good so far.
"Not my circus, not my monkeys"