The Good Housekeeping one is fab - all the recipes always work - and are delicious. Plus no strange or expensive ingredients in most of them.
www.amazon.co.uk/Housekeeping-Vegetarian-Cookbook-Step-step/dp/0091851645/ref=pd_bbs_sr_1/202-171191 0-8452630?ie=UTF8&s=books&qid=1188507383&sr=8-1
It depends also what type of veggie food you like. I am on a budget so that determines the books I use - but I have so many of them!