A couple observations on the comments above:
1. I don't understand why anyone would buy a music server when you can buy a mac mini and external hard drive with virtually unlimited storage capability for a fraction of the costs.
2, Computer based source doesn't mean that you have to buy your music online. It just means that you rip your cd's to the computer. The only music I buy online are the few songs here and there that my wife ask for. I haven't "bought" into the high rez downloads yet so i just stick with red book... at least for now.
3. The high end CD player won't go away, but, they will have a digital input.
4. I love my computer based source and the capability of controlling it with my Iphone is shear joy.
Having said all this, it's been my experience that computer based sources are a long way off from outperforming transport/cd players. If you can only listen to the highest quality in digital playback, then you need a transport whether separate or a one box solution.