I have purchased last week a T5 Aquarium Fish Tank Overhead Light 4 x 39w 100cm from Ebay, from allpondsolutions1.
http://stores.shop.ebay.co.uk/All-Pond-Solutions__W0QQ_armrsZ1
The support given to me prior to the purchase was just amazing, I asked all sort of questions and got the replies very accurately and very quickly, there was no pressure to buy, and the seller actually offered to change the lights originally sent out for something that would suit me better.
The leg supports are made of lightweight but hard plastic, and the hood is made from some sort of composite material, very light and resistant.
There is perpex cover that slide out to protect the lights, and the luminaire has two switches, controlling each a set of two lamps.
For the price of £144 including shipping, this is a very good bargain, especially as the unit has a 12 month warranty.
Pics below:
