How to Win at Aptitude Tests. Auth:Pelshenke Pub:Thorsons ISBN: 0-7225-2814-0
How to Succeed in Psychometric Tests. Auth: Cohen Pub: Sheldon ISBN: 0-85969-658-8
Great Answers to Tough Interview Questions. Auth: Yate Pub:Kogan Page ISBN: 0-7494-0673-9
These may be a bit out of date but you get the idea
All good advice from previous posters. I got a job a few years ago partly thanks to advice from PPRuNer - thanks for the site, Danny.