I was once told to only buy shoes from companies who either specialize in shoes only, or whose main focus is shoes, particularly running shoe companies who also sell tennis shoes. This would include: Nike, Adidas, Asics, K-Swiss, Lotto, New Balance, and Reebox. Companies who do not specialize in shoes that I stay away from are: Wilson, Prince, Babalot, Yonex, Head, Lacoste, Diadora(they may specialize in shoes-not sure), and Fila. The best shoe technology for tennis comes from companies who do extensive research in running shoes-all the new innovations comes from running shoe research. Based on this premise and favorable reviews I just purchased the Asics Resolutions. Asics is primarily a running shoe company with cutting edge research. I also believe the best value regarding price/performance ratio is New Balance-again a running shoe company who keeps the cost of shoes down with no exorbitant player endorsements. The New Balance 803's are excellent performing shoe for an outstanding price! I would also take a look at the New Balance 1003's. Nikes are an excellent shoe, but way overpriced due to player endorsements.