I have to disagree with a lot of people. I have a high tech 75g that I have spent just over $700.00 on. The tank and stand came used, but everything else was new. That includes two high end canister filters, and a pressurized co2 setup. If you shop around you can get exactly what you are looking for at a good price.
As for lighting: If you can hang a light then check out Aquaponics stores. I am going to be getting a new light soon for $140 for my 75g. It's a 4 bulb system with awesome reflectors, then I can sell my other light. They have 2-4 bulb systems that will fit well above a 10g and they are usually under $50 at my local shop. They are also T5 setups.