The set comes with the chamber, plunger, seal, filter cap, funnel, filter holder, scoop, and stirrer. Here's a super informative video on how to use the Aeropress made by the coffee gods at Stumptown.
Promising review: "Former barista here. I know I'm not supposed to say this because it may put me out as being an authentic coffee lover, but I've never truly loved the French press. The coffee taste is amazing, however, the silt in it doesn't do it for me. Aeropress gives you the option to have all the flavor of the French press, without the chalky silt. The Aeropress does right by the coffee. Using the ultra fine mesh metal filter, you can get ultra fresh coffee with silky sweet crema, I kid you not! I've found that the Aeropress cups I'm getting are less bitter and more well-rounded. The Aeropress makes it fun to make coffee again. It makes it fun, but also it's not so time-consuming that you'll have to carve out time for the learning curve. If you can stir and push, you can make a darn good cup of coffee!" —carpenter
Get it from Amazon for $29.95.