Ever wanted to know how to convert a image into the pixelly joy we know as Lego? I present one method that's super easy and results in a pretty damn spiffy lego mosaic!
EDIT(Jan 23, 2007): Recently the boys over at Pictobrick released their software and good documentation. Feel free to check them out as well.
Step 1: Source Image
When looking for an ideal photo, keep in mind that the resultant lego mosaic is going to be displayed in a pretty small resolution. For example, the source image is 225 x 169 pixels, the end image was resized down to 96x64 which equals in lego, about 30" x 20". In other words, you will loose a lot of the fidelity of the photo so don't choose a photo with a lot of details. Or if you want the details, be prepared to create a huge mosaic $$$.