My roommate has the cascade design product. He said it works well.
I found this and bought one to try it out:http://www.rei.com/search?query=H2jo
I have used it about 4 times in home. My method is the following:
Grind coffee with standard grinder. I leave it a little on the coarse side. Then put grounds into an empty nalgene.
Boil water. Screw on the "H2jo" to my nalgene. Pour hot water into the nalgene through the "H2jo" and let sit for 5 minutes. Serve.
My roommate and I have both worked in coffee shops and are coffee snobs. We french press our coffee every morning. I had intended on drinking straight out of the nalgene. but it tastes plasticy, so should be left as an act of desperation. If you pour the coffee into a cup and drink it, it isnt bad. We decided that it was about 80% as good as the coffee made in the traditional press. My roommate still prefers the cascade design product that was posted on this thread. He has field tested it. I gripe that it only makes one cup at a time.