Lighting Suspension

[Salinity Now]

Just wanting to get a bit of input regarding suspending my lighting on a new 75gal tank that I've been slowly setting up and I mean sloooooooowly setting-up. I have currently a 30gal tank with a diy type of contraption made from wood (it's more Frankenstein than DIY ). The great thing about it though is I can adjust the lighting vertically as I need to. I'd like to go metal for the supports so it looks a bit cleaner on my new 75gal tank. I've only been able to find this type of suspension arm system that gets screwed to the aquarium stand. Has anyone used it? If so what are the pro's/con's. If anyone has any other options I'd love to hear them.

http://www.aquaticlife.com/hangers/index.html

Ps: Forgot to mention I live in an apartment so drilling into the ceiling is not an option.