Will computer to DAC replace transports and cdp's?

Before this thread goes to the dogs. I would like to thank everyone that has posted, it has been very informative. I choose the Roku SoundBridge over the SB for one reason only. I am feeding SPDIF out to a DAC using iTunes. The Roku integrates flawlessly with the iTunes library using .WAV files. The only issue is you have to choose your music from the Roku interface using the remote provided. Now you are susposed to be able to control the Roku from a web interface some times I can see the interface under my network connections and some times I can't. :(

So here is the current setup computer, ethernet cable to Roku, SPDIF out of the Roku to a Musical Fidelity Tri-Vista DAC. This equals sonic bliss. I honestly can't tell the difference in this setup and using my Theta Digital Data Basic II transport.

"Steve, I see, this explains it. However, please be aware that as good as it looks, there are problems transmitting separated Data and Clocks via single cable, especially in the case master clock is included."

I will not even pretend that I know how a audio DAC works internally. But to transmit a digital signal down COAX it has to be a digital streem. If you are transmiting Data and a Clock they must be muxed together into a single digital stream. The mear fact that muxing is involved means that a clock is involved in time slotting the various packets. If I am way off base here please correct me but I see no problem in sending both the Clock and Data in the same signal.

Which brings up a question for Steve and Alex for a mear 3-4 hundred dollars you can bring the clock out of a GPS receiver. Why is it that no one has tried integrating that clock into a DAC or Transport or both. It seems to me that this would eliminate alot of the clocking issues inherent in audio equipment. The fact that it is a stratum one clock IMHO is a huge advantage.

P.S.

I just picked up a MF XDAC V8 that has USB in this past saturday. I am outputing it to a MF X-CAN V3 for a headphone system. I may never listen to the main rig again. Ok that may be going a little far but with 60 hours on it it is sweet.