I recommend you do some research. A reef tank requires money, regular maintenance, time, and energy. What size tank are you thinking of? 30 gallons is great size to start out with. However, larger is better b/c you'll have more room for error, but it will cost more. Try finding a great deal on craigslist. Lighting depends on what corals you want and what your budget is and what size tank you have.
“Success is walking from failure to failure with no loss of enthusiasm.”
- Winston Churchill