What are the differences between the Toshiba 57h81 and 57hx81? I know there are some differences in the sound system. What about the optics? I'm actually trying to hold off and wait for the 2002 models. Does anyone know if the 57h82 and 57hdx82 will have the same differences as the XXX81 models? From what I've heard, it seems the 57h82 will be out in July and the 57hdx82 will be out in the fall sometime. The question boils down to... is it worth waiting for the 57hdx82 in the fall - or just go ahead and get the 57h82 in July?