Update March 29 2010…
Since this article was written in October last year, I’ve relocated. There is a newer post on my Spring Earth Box HERE
Another note is that when I visited my old house the other day where the below project was undertaken, I was amazed to see lettuce growing EVERYWHERE! I had let a couple of the plants go to seed and boy did they seed! There was romaine in every sidewalk crack and covering the area where the old earthbox project lived! Scroll down for more about the October planting.
The Earth Box Project Lettuce is growing nicely. The first photo shows the Earth Box, 10 days after planting tiny fragile lettuce seedlings. The second photo shows the lettuce thriving 8 days later. At this rate, I should be eating my first salad in a week!
A comment I received on the original Earth Box Article asked if I’d ever tried the “Grow Box.” 
I followed his link and found that the grow box is very similar to the Earth Box, with a few improvements. A larger water reservoir, and the water fill area is actually part of the box, rather than a standpipe. Looks like a nice improvement and the price is about 10 less than the Earth Box. You can check it out here. Just checked out this site for updates and I’ll tell you one thing folks.. the price on the Grow Box is pretty good. Just sent a friend to their website to buy one.
Since writing this post, I’ve found a home made variation that is very intriguing! 
Ray Newstead, an heirloom tomato grower found the Earth Box not quite strong enough to support some of his larger tomato plants. He set out to create a variation. He calls it the “Earth Tainer ” tm. Here is a link to the detailed building plans on his website here. It looks strong and fairly easy to build. Check it out ! I can’t wait to build one! Here is a photo of an Earth Tainer TM Farm.