it depends on your area but keeping a eye on it is a good deal. i find all kinds of tanks with stands for $1 a gallon often with other equipment. you just have to look.
if you don't have to have something brand new, craigslist is a much more cheap and viable alternative. A few different places have a $1/gal sale, but the catch is that you still need to get the equipment and stand so its going to cost you to put it all together. Find a nice setup on CL complete and cheaper =]
Thanks guys. I will keep my eye on Craigslist, and hope I can find one.