Hope this helps with your study efforts:

http://www.cccure.org

Practice questions and other resources. Worth your time after you've read all those books and before you sit for the actual exam.

Don

I would second Don on this one, some of the practice questions maybe a little outdated but they give you feel for the exam questions. Other great source is the forums there, that gives whats the latests expectations in regards to the topics covered as the exams and materials are constantly updated.

The cccure.org site really helped me to pass CISSP.