Do I really need a $500 Kaplan class?

I am graduating in March and planning to take the NCLEX ASAP. Some classmates are taking Kaplan's 30-hour course, but I can't afford the $500. Do you think the class is worth it?

I've got Saunders Third Edition and I've been working through it. I usually get about 75% of the questions right at the end of each chapter. I'd like to find a resource for another huge bank of NCLEX-type questions for practice. Any suggestions?