I'll be purchasing a Yamaha 750 and Genie package next week and need some help in understanding all the cables I need to set it up. I've currently got a Panny 37" Viera, E85 DVD recorder, Sky and a VCR. Apart from the speaker (subwoofer) cables, what other cables do I need? I know I need an optical cable between amp & dvd player, but what else? Thanks!