"With a tv/radio tuner card I personally will no longer have any need for my seperat DVD, tv, stereo, surround sound video recorder.My PC will fullfill all thos functions, and as it is networked, can supply those needs to any portion of my home."
Unfortuantely, a PC falls greatly short of replacing my stereo. For the average user a PC may be able to replace some of those lower end Sony, JVC, Pioneer, etc. type of systems. The PC has a LONG way to go to replace the higher end Marantz, McIntosh, Sunfire, Pioneer Elite, etc. market. The rule of thumb is 2x the price is when you see performance gains within today's A/V equipment.
Last year I replaced a JVC 8020 receiver with a Marantz SR7300ose. The sound difference was like night and day. This year I added a Windows Media Center edition to the mix. The sound from MP3's isn't close to the sound from CD's or SACD's. Unfortunately, the market has traded ease of use for reduction in quality.
As the AmigaOne system uses PCI cards same as the Windows PC. I'm sure you'll be seeing similar sound quality issues. I'm hoping Amiga will update the AOS4 so it can handle the latest video and audio cards on the market, which will further help OS4 catch up to the sound quality of the PC. But, a computer based home theatre architecture has NOT come close to being able to replace my Marantz system. Someday? Probably. Today? No.