Not who you are replying to but thanks for mentioning lulu.com - I have a camera manual pdf that I have been meaning to get printed as a spiral bound book and their rates look quite reasonable.
Agreed! I've used them for printing a few larger PDFs as well, and the only part which I cringe at usually is the shipping cost (which it's bad, it's just that the print is so cheap there shipping looks pretty significant next to it).
Random story/context: I've actually learnt about lulu from Intel - a decade ago or something, when they stopped shipping Intel Manuals for free to anyone who asked, they redirected people to lulu to get a printed-on-demand copy.
