Express Action Sports

I wanna do something crazy like skydive or bungee jump, but I don’t have the money to do it. Do any of you know of any other adrenaline rushes that I can get from some extreme sports? I don’t want to do something lame like jump in front of traffic or some Jackass-style stuff, but something like base jumping, only for less money. 🙂

have you heard of free running its easy and free just watch this you tube vid on it and if u like train then have fun its awesome and gives that rush
Link to vid: http://www.youtube.com/watch?v=3KSr1pozm6Y