I know what you're saying. I was looking for lighting advice on a tank I'm setting up and he was basicall yelling at me, telling me that 250watts of halide do not generate more heat in a tank than 250watts of t5. I asked him if he was sure and he gave me his version of a scientific explanation. I then asked him if he's ever had a MH and, of course, he said, "no." I then told him that I had a tank with a 250w MH and the temp would reach 85*, I switched to 6 overdriven t5's(about 300 watts) and the temp never got above 80*. He said there had to be something else contributing to the heat. I did nothing but switch from MH to T5 and he called me a liar. Well, he setup a new tank decided to use 2 250w MH's and guess what, he had to buy a chiller. The heat MH's generate is tremendous, see how long you can keep your hand under a halide before your skin begins to melt off.
GinMartini, I've been following your thread, and thanks for letting me know about the stand.