Even cheaper, go to your local library and borrow a copy of this book:
http://www.amazon.co....qid=1298418573&sr=8-1
(It's in most libraries. For a basic will, it won't matter if it's an older edition).
However (as the former managing director of a will-drafting company) I'd strongly recommend that you study that book thoroughly, rather than just look at the basic format for a will. It's important that your will should cover all of the "what if?" questions. (For example, if a husband leaves everything to his wife, what should happen if they both die in the same car crash? Similarly, if someone leaves their estate to their three children -all of whom have provided the testator with grandchildren -, what should happen if one of the children dies before, or at the same time, as the testator? Should the estate then be divided between the two surviving children or should the third which would have gone to the deceased child be shared between his children?).
Chris