"most any other info you get here will be useless..."
Some people here actually have more fish tanks than computers
All aquariums are not created equal. Acrylic is nice to start with, but really has a tendancy to scratch over time. Once they scratch, it is not coming out easily. Just using a soft sponge to clean a tank can cause a scratch if any dirt is on the side walls of the tank. Acrylic is good if you have kids or anything that might actually whack the tank though. Glass shatters very easily compared to acrylic. Also, spending a few extra $ for a brand name tank is a good idea. No fish tanks SHOULD leak, but some end up leaking over time at which point that $10 you saved on a generic tank will cause you untold misery. I would reccomend any All-Glass manufactured tank.
The Eclipse setups are nice, but pricey. I personally think you would be better off with a glass 10g tank, glass top + flourescent hood, and a power filter like a Millenium 1000, Penguin 125, or Aquaclear Mini. If you want to get started on the cheap, Wal Mart sells a $50 kit with a 10g glass tank, standard hood (w/flourescent light), and a decent power filter.
When you end up buying fish for the tank, be sure not to go overboard. It is extremely easy to overload a 10g tank. A general rule is that you can have 1 inch of fish per gallon of water. And that is full grown size, so you can not get 10 one inch fish that grow to 3 inches each or anything.
Also, read up on the "Nitrogen Cycle", or buy some Bio-Spira (google search for more info).
Let me know if you need anything else, or go check out
www.aquariumadvice.com where I post a lot.