What kind of pre amp or pre-pro do I need. Right now I have a Marantz SR4002. I have a projecotr and dvd and xbox 360 hooked up with HDMI cables. And then a computer hooked up with an rca to the receiver. I also have an Acurus 3 channel amp running off the pre outs of the marantz. I want to have a pre-pro that does home theatre but also want to listen to music thru just the front channels (2.1). I know this is a lot of info but i don't know how else to clarify what i would need and i am lost about what I would need in a pre amp or pre-pro. Thanks for any help.