wow good luck heaven! i think this is fabulous, i might get that book for when DS2 is ready for me to put something in place as we sttruggled with DS1 for ages and he still doesnt sleep through. i guess all babies are different but it is great to be proactive about it. i love the sounds idea, sleep cue idea and also the cuddly toy - might start them with DS2 now!
best of luck - i will be watching this thread! xxx