My wife wrote an article a few years ago about sites for DIY wills, etc.
http://online.wsj.com/news/articles/SB10001424052748703808904574529622580839440?mg=reno64-wsj&url=http%3A%2F%2Fonline.wsj.com%2Farticle%2FSB10001424052748703808904574529622580839440.html&fpid=2,7,121,122,201,401,641,1009
(you may need a WSJ login to see the article).
Even after all her research, we went to an attorney for ours. Most quotes were in the same price neighborhood as yours. The DIY route may be a cheaper route but it puts a lot of the burden on you and there are a lot of reasons to be wary of the end product.
We used John G. Llewellyn http://llllaw.net/. He was easy to work with.