Jepsep, I don't have the links right now but if you do a google image search you will see some examples. Most people modify the tek legs and there are a couple of custom options. I looked for a long time and ended up using the aquatic life light bars. They attach to the back of your stand so you don't have to hang them from the ceiling. I have been very happy with it.
I've thought about that, glad to know that they are strong enough, may be an option when I switch to my bigger setup in the spring, can't get to the back at the moment though.