This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
We do provide a sample assignment for SCJD. It is not same as the actual assignment but it covers all the concepts and techniques that you need to learn to develop the SCJD assignment. You can know more about it here : http://enthuware.com/jdevplus