I am in the process of hooking up my AV sytem. What would be the best connection for dvd to amp? I have a Yamaha 520 dvd player with coax and optical outs, a Yamaha 620 amp with coax in that the manual says is for a laserdisc player? Also, if i do go down the digital road, what interconnect would you recommend in my budget range £10-£20? Many thanks for any help.