How to convert your Facebook profile to a business fan page.
http://smedio.com/2011/04/04/how-to-convert-your-facebook-profile-to-a-business-fan-page/
Facebook Profile to Business Migration Tool
The tool provides one-click access to converting an existing personal profile to a business page. As per Facebook, the migration would work for a number of business types and categories, including local companies, larger organizations, public figures, causes, and even individual products. From a business perspective, it’s a blessing in disguise as all your followers are converted into fans.
(via Instapaper)
One of the drawbacks to this is that you won’t be able to view posts in your newsfeed from your family & friends.
It’s probably best for you to create a new personal profile.
