So, if the poster is serious, he should post a list of equipment that he intends to use... with prices (or we can help estimate it). That way, before he even commits to anything, if there are any obvious problems or mistakes, they can be worked out. If the budget is unrealistic... then we will know.
Also, a budget of time and monthly upkeep and costs would be a good idea. For me, its not so much the cost that keeps me from even wanting a 1000g+ reef tank... its the upkeep that I really dont feel like getting out of control with. Thats why I will most likely never want more than a 2' tall tank... even when I go 6'x6'... because its just easier to reach into the tank in a split second and move something if I need to. 8' tall? Well, thats an hour or so a week just putting on your snorkel and fins & getting in and out of the tank, taking an extra shower before and after, etc. So for me, a 500g is about as large as I think I would ever like to go... more than that, and its a seperate part of the house with its own chores and responsibilities... and that really takes away from the enjoyment for me. Id rather have an extra 2 hours of viewing time than an extra 2 hours a week of cleaning time.
One question, and this is somewhat aimed at Spazz (Bill), etc. For concrete tanks, why dont people just mix the sealer into the concrete? There are vinyl additives that prevent the concrete from soaking up water. It would seem to be a better option than just paintint the inner surface with something, unless that something was very hard, at least like acrylic. A rubber/epoxy coating just seems too easy for the critters to want to burrow into (if a fan worm), or try to snack on to see what that rubbery stuff tastes like (like an urchin). I dont know... but coating concrete would just make me nervous.