You can easily make this stove from an old aluminum can and save yourself $25
Works great
Check out zenstoves.net
If you want to make your own stove, I'd recommend this design for a first.
http://jwbasecamp.com/Articles/SuperCat/index.htmlExtremely easy to build and performs almost as well as any of the other designs out there. These stoves are basically just for boiling water.
There are precautions you need to take when using any alcohol stove - be careful as the flames are invisible in bright sunlight and denatured alcohol is poisonous.