Mosby has an online review course that is less than $50. You take a pretest and then have a calendar of modules to complete based on the results of the pretest. When you finish the modules you take a mock NCLEX that tells you your chances of passing NCLEX and the areas where you are still weak for further studying.
We recommend to our graduates that they do 100 questions/day, preferably on a computer. The more questions you do, the better you'll do on NCLEX. The computerized questions (CD) will help you be comfortable with answering quesstions on the computer. Also, go to Pearson Vue and watch the NCLEX tutorial. Many of our students freaked out when the tutorial came up on NCLEX and a note that it used a portion of the allotted time. When they do it prior to NCLEX, they don't have to waste time with it later and can just click through the slides.