Sonos Questions

I've been using a Roku Soundbridge for several years but have never been able to get it to successfully play lossless files without constantly rebuffering.I have spent endless hours on the Roku forum site and unsucessfully confering with their alleged support staff and have finally had enough.

The Sonos looks like a good alternative, but I have a few concerns. Other related threads indicate some sonic issues due to jitter problems. I currently use a Proceed DAC with an optical connection to the Soundbridge, and that change from the stock Soundbridge was a big improvement. The Sqeezebox looks like an alternative, but the Sonos interface seems much better (ie something the rest of the family might actually use).

So what's the consensus on sound, assuming that a decent DAC is used?

Second, I have about 2000 CD's so I want to have a commecial ripping service store them for me. Since my computer system is Apple based, I thought ALAC is the way to go. I've also seen threads here that the Buffalo NAS devices can be problematic for Apple users. I need to choose an appropriate NAS device to get this project up and running.

Any guidance would be greatly appreciated.

Thanks and Happy New Year!
I use the Sonos ZP80 with an Audio Horizons tube DAC. My music is stored in FLAC format on a Western Digital Net Center 500 GB drive.
According to the Sonos web site, they support Apple lossless.
Before switching to Sonos, I used a Levinson 37 transport which had been modified by Joseph Chow (Audio Horizons product designer) to improve the output signal.
Initially the Sonos system delivered OK music. By that I mean the music was not as good as the ML 37 by a good measure but, because the Sonos interface was so good, I was willing to compromise.
Since then, Joseph Chow has built an external power supply for the Sonos ZP 80 which greatly improved the sound quality. I think the Sonos is now the equivalent of the modified Levinson 37.

What did this external power supply cost for the Sonos? Interesting thought, as I just would never have thought wireless could sound as good as a direct connection. For sure, it is the DAC that is also contributing.

I have a sonos system for whole house audio and love it. Have considered modding it, but may get a mac mini instead. Only thing i don't like about the sonos is it won't play downloaded songs from itunes. I have a airport express i may hook up to it and play them that way.