I made a book using blurb. It turned out awesome and everyone loved it. I might order up some of those posters tough. I've got stuff printed but not for that cheap.
Another thing I've done is a raster, here are some examples - http://www.jpgmag.com/themes/19
Mine is 7x6 sheets. the whole project was about $10 bucks and I couldn't be happier
EDIT: just checked that site, they kinda get you on the shipping. I guess I'll order 3 or 4 and save some money.
(Message edited by adamo on February 14, 2009)