I was very impressed by La Dooce's arrangement of pictures in her kitchen, but overwhelmed at how difficult it was to get the frames to line up so precisely. Much as I like the result, this was never, ever, ever going to happen in our house.
The Picture Wall Company lets you make beautiful and precise arrangements of photos and pictures on your wall. You get a set of attractive, basic frames and some stick-on templates which eliminate the need for measuring and additional tools. You bring the hammer, but that's it.