I have been reading about ways to get better sound from my CD players and laptop. DAC's look like the way to go, but get more confused the more I read. I have a Denon SACD CD player, about 6 yrs old and a Marantz 5 disc carousel CD player about 2 yrs old. My son gave me his old Acer Aspire laptop about 3 yrs old. He has about 22,000 songs in his itunes library recorded in AIFF in Itunes. I have been reading about Benchmark, PS audio, Cambridge Dac Magic, Beresford and Musical Fidelity VDAC DACs. These would be in my budget. I want DAC that would work great with CD player and laptop. I/ve read where the USB ports on these DAC's are not that great. I/ve also looked at the HRT Music Streamer II USB DAC and Nuforce USB DAC. Would I be better off getting separate USB DAC for the laptop, then separate DAC for the CD players? Any information will be appreciated. Thanks. David Hammer.