Again, thanks for all the food for thought. I knew it would happen, the engineer part of me took over, 1 am this morning and i'm still doing research. Seems reguardless of which way i go(squeezebox,Emperical Audio) the most important thing is to get the digital signal to my DAC with the lease amount of jitter possible. It appears their are software upgrades available for the SB Touch as well as hardware and both the SB and EA would work best by being hardwired rather than streamed. Also, cable type plays an important role.
So right now I'm leaning toward a NAS, after looking around at the external hardrives i have laying around stuffed with music plus all the CD's i'm guesstimating I have about 1.5TB of music at flac compression, so need at least 2TB plus another 2TB for backup.
Also think I will use an I Pad. The SB or EA decision remains a tough one. I just realized my DAC upsamples all data streams to 24bit before sampling at 768khz.
Hope I'm on the right track, I truly enjoy the way my system sounds and certainly don't want to take a step back. By the way what I have are McIntosh MC300 amp, M46 pre-amp(that i will be takening out of the system), MR85 tuner(I will also be selling the tuner), MDA1000 DAC, MCD205 cd player and all plugged in to a Powervar 12. Speakers are Tannoy D700's and also a McIntosh SL-1 subwoofer that is used at times. When the little lady won't put up with anymore I use a pair of Sennheiser HDR 180 headphones.