Mike Matas has a cool trick
When I read his blog entry about making (i)Life Posters I decided I would give it a go.
It was really quite nice to put together. First I went to all the pictures in 2004 and created 12 smart albums to separate them by month. Then I grabbed about 8 of the most interesting photos from each month and put them in an album. Then you follow his prescription, with one variation, he failed to mention you have to bring up Page Setup… again and set the paper size to your newly created Life Poster size. Since this is all done on the Mac with iPhoto, he really should have called it an iLife Poster :)
Here was the result of my iLife Poster 2004:
Now to print it :)