The development of an effective design for an XUV storage ring free electron laser requires a general knowledge of the role of undulator geometry and dimensions, electron beam emittance and radius, and optical mode size. A review of these elements indicates XUV FEL operation will require an uncoupled, low emittance electron beam, a strong undulator magnetic field, and a long interaction region. Assuming 50% reflectance optics, operation at wavelengths as short as 100 Å appears possible.