Lightly used study materials available:
STC Series 7 Study Manual and access to online final exams - $125 shipped within the US. Manual has some light underlining. Online practice tests are REALLY useful and you're able to take them up to four times, I've taken most only once and there are 13 of them.
Training Consultants Series 66 Online Course package. Includes access to online, on-demand lectures and practice exams. Expires 7/28/2012. $100.