Im looking to upgrade my equipment. Not sure what price to ask for for my Harman Kardon dpr1005, POlk Audio csi5 center, and polk audio Rti150 towers. All are in great shape. Also have a cerwin vega sub lw-12. The speakers are in great shape and sound good, I just wanna move up to something a little better. Do you all think I could sell this stuff on ebay or some site and if so what should I ask seperate or together? Thanks all