Speed And Agility Training

Speed Training?
What are some good speed training drills that will improve my top speed, acceleration, and agility?
If you go on Eastbay.com they have a large variety of this stuff. They have agility cones that you run around, ankle weights, a parachute that you put on your back o increase your leg muscles when you run, and stuff like that.
Speed Agility Quickness Training

