The Power Wave: Innovative dance guru Gabrielle Roth is the instructor (and who better?) of her own brainchild -- a workout program that uses physical movement as a way to achieve spiritual awareness. "The Power Wave," the second installment of Roth's Ecstatic Dance collection, offers a high-energy routine that invigorates the body and spirit. You'll feel the stress lift off you in no time via this wonderful regimen.