Women's Health Environmental Research Centers Act of 2000 - Amends the Public Health Service Act to require the National Institute of Environmental Health Sciences to make grants for the development and operation of not more than six centers to conduct multidisciplinary research on environmental factors that may be related to the development of women's health conditions. Requires each center to conduct basic and clinical research, develop training protocols, conduct training, develop model continuing education programs, and disseminate information to professionals and the public, with priority to prevention activities. Allows a center to use grant funds for stipends for health and allied health professionals in that training. Requires each center to: (1) collaborate with community organizations; and (2) use the facilities of a single institution or be formed from a consortium of institutions. Limits support to five years but allows extensions if recommended by a technical and scientific peer review group appointed by the Institute's director. Authorizes appropriations.