Centralizing my home audio

[boman085]

Goal:
I am attempting to centralize my audio to my pc speakers while maintaining the highest quality possible (digital 5.1).

Questions
1. Is my goal even possible?
2. If the answer to the first question is yes, than what would be the most appropriate configuration?
3. If the answer to the first question is no, than what other option would you recommend?

Home Devices
1. Cable Box
a) toslink out
b) HDMI port

2. Xbox 360 slim
a) toslink out
b) HDMI port

3. HDTV (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5039286)
a) HDMI port x4
b) toslink out

4. PC
a) Mobo: GA-790XTA (http://www.newegg.com/Product/Product.aspx?Item=N82E16813128416)
- toslink out
- coax out
b) GPU - ati hd5850
- HDMI port
c) **willing to buy** Sound Card: Creative Sound Blaster X-Fi Titanium (http://www.newegg.com/Product/Product.aspx?Item=N82E16829102019)
- toslink in & out
- coax out? (I believe it does)

5. Speakers: z-5500 (http://www.newegg.com/Product/Product.aspx?Item=N82E16836121120&Tpk=z5500)
a) toslink in
b) coax in

 

[MEgamer]

hmmm... an amplifier would sort out ur problem, as it would connect all these devices up together... and it would seem a waste to spend a lot of money to buy a reciever, for speakers like them as well as u having no high def source, unless of course ur PC is one.