You will need a good filtration system that pumps 300-600 gph. I prefer the Whisper 60/30-60. It is easy to maintain and us only $34 at WallyWorld. A light and hood. I prefer you to get 2 24" hoods with flouredcent fixture from WallyWorld. They are $20-30 each and last forever. If you want an air pump, I would get a Whisper 30-60 Air Pump from WallyWorld. They are about $20 and last forever. They pump air in really deep tanks, too. You will need a gravel vac if you decide to use gravel. Get the largest size available at WallyWorld for $6. If you decide to keep tropical fish, I would suggest for you to get 2 Whisper 30-60 Heaters. Put one on each side of the tank for even heating. You will need a stand as most furniture isn't made to support the weight of a full or partially filled aquarium of that size. You will need decorations for fish to hide and play, especially plants. If you are beginner, you will need plastic plants until you get started. They are easier to take care of and you need no special equipment for them. That pretty much sums it up. I suggest you to get an algae scraper and extra filter cartridges for maintenance. Oh, and you wil probable need water conditioner. I prefer Chlor Out as it is simple and it gets the job done.
Daniel
Whisper 30-60
http://www.tetra-fish.com/catalog/product.aspx?id=577
Whisper Air Pumps
http://www.tetra-fish.com/catalog/product.aspx?id=855
Whisper Heaters
http://www.tetra-fish.com/catalog/product.aspx?id=63
It says it will heat up to 30 gallon tanks, but they have one with the smae packaging called the 30-60
Pefecto Full Hoods
http://www.perfectomfg.com/
The box at WallyWorld doesn't say Perfecto, but the manual inside does and it looks the same.
Gravel Vacs
http://leesaqpet.com/index.php?page...ufacturer_id=0&option=com_virtuemart&Itemid=1
It looks like this and is made by the same people, but with different packaging.
Algae Scraper
I use Plastic Mainstays Putty Knifes from WallyWorld, but algae scrubbers are good, too.
http://leesaqpet.com/index.php?page...ufacturer_id=0&option=com_virtuemart&Itemid=1
http://leesaqpet.com/index.php?page...ufacturer_id=0&option=com_virtuemart&Itemid=1
These are my favorite plants. Tetra WaterWonders. They sway with the current and stay clean for long periods of time. They are easy to clean, when needed, too.
http://www.tetra-fish.com/catalog/category.aspx?id=81
Filter Cartridges for the Whisper. These are cheaper when bought in bulk, last a long time, and have removeable carbon in case your fish get sick. The good part about assembling them is that you don't have to put the carbon in if you don't want to use it, and you can fill it with any other media that you may want.
http://www.tetra-fish.com/catalog/product.aspx?id=57
These are already assembled for the busy aquarist.
http://www.tetra-fish.com/catalog/product.aspx?id=57
I think that pretty much sums it up. You should get a good book for reference, though it isn't necessary. I prefer Freshwater Aquariums for Dummies.
Daniel