I can't comment on any other self test software but I used the same book that you mentioned above as well as the C|EH Review guide by Kimberley Graves as well as other books on security and for practice tests I used Boson: http://www.boson.com/Product/131.html $50
The Boson self test is good and I'd say worth buying but what helped me most for the exam was reading my study notes and playing around with the tools mentioned in the books - gaining hands on experience helped loads.

Good luck!