I would like to upgrade my poor older DVD player and five disc CD changer. I'm interested in an upscaling DVD player through componet cables. I would also like to get a SACD, DVD-A, CD changer in at least a two hundred disc capacity. My question is how many different pieces of equipment do I need to buy to achieve this. I was thinking about a Sony changer to cover the changer and SACD, but then I still need a DVD-A player and a upscaling DVD player. Any suggestions? Thanks in advance.