If you get one of the better units that can store uncompressed files you should be okay. I have a Request Fusion 80 and I think it sounds okay using the digital out and storing uncompressed files. The idea of using a computer is a good one, albeit cumbersome. The advantge of the Request is that it can be integrated with a control system, such as Crestron and can then be controlled from touchscreens all over the house.
Dean.
Dean.