I'm rather new at this, and I can't comment on your "share" stuff, but I think I can share a few things I've learned about how to optimize for sound quality....
1. sound quality will be best if you go USB or Firewire from the powerbook direct to a DAC. Also, if you go USB or Firewire, the cable should be pretty short -- 1M or so.
2. Airport Express is certainly an option, but the DAC in the AE is not so good. And, if you go AE to a DAC, there's a lot of jitter created by the AE, which will again negatively affect sound quality.
I've tried both.....Macbook to USB DAC and using a AE. Macbook direct to DAC sounds much better.
3. You can use a Iphone or Itouch to control the powerbook remotely. I haven't tried this, but I've heard it works very well.
1. sound quality will be best if you go USB or Firewire from the powerbook direct to a DAC. Also, if you go USB or Firewire, the cable should be pretty short -- 1M or so.
2. Airport Express is certainly an option, but the DAC in the AE is not so good. And, if you go AE to a DAC, there's a lot of jitter created by the AE, which will again negatively affect sound quality.
I've tried both.....Macbook to USB DAC and using a AE. Macbook direct to DAC sounds much better.
3. You can use a Iphone or Itouch to control the powerbook remotely. I haven't tried this, but I've heard it works very well.