For audio streaming, Logitech's Squeezebox is pretty much king of the hill.
What if I just want to stream music?
The aforementioned devices will stream music as well. But if you'd prefer something that hooks into a decent pair of speakers rather than turning on the TV, you might like to check out the Logitech Squeezebox, Pinnacle Soundbridge, Apple Airtunes. Or if you have a megaton of cash, Sonos is the choice for your divine audio-auditing needs. The new Squeezebox Duet looks interesting, too.One caveat you will have to be aware of--if you have protected content from iTunes, make sure the player can handle it, as a large number cannot.
