There is now a TURVEY DNA project. I mailed a sample of my son's DNA today. There are only 2 members in the study to date, so we need more to determine where the US Turvey family originated in England.
The company is My Family DNA, www.myfamilydna.com. In order to donate to the project, you have to be a male Turvey descendant regardless of your surname. This study is for Y-DNA which just passes from father to son. The concept is described much better at the website.
Some of the Y-DNA studies have been great resources for family history research.