Facebook: Is there enough room for your business contacts and friends?

Do you already have a personal Facebook page before it was opened up to everyone? Continuing with the Facebook and LinkedIn debate, how do you keep your personal profile separate from the business profile on Facebook? Some professionals would rather use Facebook than LinkedIn. Jim Rapoza of EWeek wrote about this problem in his recent blog. With the one-size fits all mentality of these websites, Facebook occasionally does not work in both the business setting versus a personal one. How do you deal with your Facebook profile?