Concrete Counter Tops

Kirsten and I have been talking about what can we do in our house, specifically our kitchen, to spruce it up without spending to much money. One idea that has surfaced is doing concrete countertops. I am curious to try it and the cost would be minimal. Best of all if we don't like it, then in a couple years when we have the cash, we do something else. I think of it as the poor man's marble.

Sooo, anybody with any experience? Want some? Here's a link to get you started:

http://www.naturalhandyman.com/iip/author/dcn/conccounter-a.html