I don't know if this link will work for all of my overseas readers (their site doesn't always), but the BBC has put up an article today about everyone's favourite heroes, Jackson and Livingstone (pic is linked):
My brother and I only had a handful of these, but they weren't half fun!
A few years ago, my wife and I actually made a choose your own adventure for a friend's birthday present, mirroring a possible working day in his life. It ran to some 120 pages and about eight or nine different endings. A fun project that took us the best part of a week - a great deal of planning and mapping-out!