Back in this thread somewhere the issue of price was brought up.
I just set up a 100 gallon unit (60" long, 24" tall, 16" wide) that I bought for $159. Add two AC110's at $70 each and now I'm up to $230. The gravel was free, just labor to wash it. I can buy a light at Home depot and fab a cover to hang it, $30. I'm lucky because I did not need to buy a stand; I have a natural place in my house for the tank, but if you're even a little bit handy you could buy two 8' 4x4's and a few 2x4's and make your own. Just wrap it with some fabric.
All in all this 100 cost me under $300 to set up, and not only is it massive, it looks great.