I have just finished doing the Sing and Sign course with my DS and although I wouldnt particularly recommend the classes the handbook that can be bought directly from the website (singandsign.com) for £10 has all the signs in and I think it is quite self explanatory. Both I and my friend who also did the classes have said that we may as well have just bought the book. Hope that helps.
I used Baby signs by Linda Acredolo. It worked brilliantly with us and DD1 had over 100 signs. I liked it because it is a system specifically designed for babies and is not adapted from adult sign language, which I found some of those signs juts too difficult for a one year old to manage. For example, in most baby signs the sign for aeroplane requires you to bend back the three middle fingers whilst sticking out your thumb and little finger. With Acredolo, you just stick out both arms! Much more visual, bigger signs and easier for the children to grasp. HTH