Golf beginner - where to start and what do I need?

I've been thinking about taking up golf over the last couple of years. Other than going to the driving range and making an ass of myself with my friends or playing mini golf, I am new to the game. I know the rules, terminology, just need to learn how to develop and refine my swing.

And I also need to know what kind of equipment I need.

Also, what is the best way to get decent discounts on green fees?