craftgrrl | bookbinding references?

For my last project with my class, I had them create a page for an encyclopedia about their home country (which happened to be the country I was teaching in). The stuff they created is terrific, and I want to have it bound into a book.

Google has a lot of places I can call for estimates re: custom projects (I have about 120 pieces of A4 size paper), but I was wondering if anyone had personal experience with bookbinding businesses, good or bad. Also, any idea of what I should be paying for a project like this? I'm sure it's doable myself, but I really want this to last, and I'd rather not risk messing up.

Any suggestions/feedback would be appreciated. TIA!