Network Storage for iTunes Music Server

I have a question related to moving a PC-based iTunes file to Network Attached Storage and how that might complicate future ripping and syncs with an iPod.

I moved my 50GB (and getting larger) iTunes file to a ReadyNV+ NAS not only to get a huge music file off my PC, and also for better audio, as I have a Cullen SONOS ZP90 reading the NAS files into a Northstar DAC. Then I do not need my PC turned on to control the SONOS music server...I use an iTouch. Works great.

But if I remove the iTunes file from my PC, how can I continue to sync with my iPod? I suppose I could move the iTunes file back when I need to sync. Any suggestions?

Also with the iTunes file on the NAS, what would be the best way to rip future CD's and then sync these tracks to the NAS? I have all my tracks in Apple Lossless.

Thanks