many places have custom tank fabrication, the thing that makes all those tanks look nice is that they are rimless and trimless, elos and ADA are the two most popular makers right now for rimless high quality tanks, miracles in glass and tenecor are others. glasscages is a popular place that does all kinds of tanks on the cheap, they are lots less than anywhere else, and they may not be finished as well as elos, but they are built like mac trucks and dirt cheap. (you also do not have to tank to a sales rep to get a quote)
http://www.glasscages.com/?sAction=ViewCat&lCatID=46