I want to hook up a new home thater (Sony DAV DZ170) with a PS3, a Dish DVR, and my TV?

[G T]

I have a PS3 60GB, a Bravia KDL 52V5100 tv, and a Dish VIP722 DVR box. I want to set them all up through a new Sony DAV DZ170 I picked up today. With only one HDMI out port, how can I get all of my equipment to play through the Home Theater in the best surround sound? What has to be connected to what to accomplish this? I have another Sony surround sound set that is worthless because it doesn't have any HDMI ports. I don't want this to haappen again and I just can't understand why in this day and age Sony would even think of making a set that has zero HDMI inputs and basically make it so hard to connect what evcerybody has, a satelite DVR, a game system, and a TV. The Home Theater only has one Optical in and a coax in, and I'm sure you can use one or the other, but can you use both? Without 2 inputs will I be able to use all of my equipment in surround sound?