Sweet! Thanks for the links. Will mentioned the ADA tanks, but I couldn't find them so I didn't bother to keep looking! I'm going to be looking at -10 gallons for now. This is going to be on my desk, and 12 might be fine for that as far as weight goes, but I don't have too much room for that. Which is why I was looking at the 6.
For the Edge, I'm wondering just how hard replacing the lighting is going to be. I'm not even sure what I would need... a LED of some sort? I don't know what else would be small enough to fit in the space provided.
Yeah the still have 'em at Pet-Co for $99. You reminded me that I saw them there about a week ago!
there have been people who replace the stock halogen with led's but the main issue is the fact that the light housing only covers a small portion of the tank, so you get really bad dark spots in the corners and in the front. they are also a real pain to clean.
here are some places to get great nano tanks
http://greenleafaquariums.com/glass-rimless-aquariums.html
http://www.picoaquariums.com/