Norwegian123,
I would check out Pat's review of clinics he visited in Europe. It's under "Visits to Leading Hair Transplant Clinics." It sounds like there may be some promising clinics over there.
Regarding North American clinics, I would agree with "wanthairs" recommendations. Like wanthairs, I also had a procedure with Dr. Jeffrey Epstein, who I'd highly recommend. You may also want to look into Dr. Ron Shapiro and Dr. Paul Rose. Take your time and find the right doctor for you.
GuitarPlayer