Let the hive mind of Engadget get that for you.
"For a long time I have been searching for a portable device where I can store all of my CDs in MP3 format and stream the songs wirelessly to my HiFi system. The portable device must I've tried FM transmitters, they all suck. I don't want a docking station. Any help? Thanks!" have a display so that I easily can scroll through the playlists (I don't want to use a TV or monitor). I suppose that there must also be a second device that is connected to the HiFi system that would receive the wireless streams from the portable device.
I bought the Kindle 2 when it was released earlier this year. For many years I have been wanted an e-Ink display device, because reading on a computer screen hurts my eyes. I can, however, work in front of a computer all day. There's something different about reading. Anyway... I also wanted a way to carry reference material with me. Dictionaries, book collections, song lyrics and chord charts, etc.
However, every e-Ink device failed in some major way for me. When the original Kindle came out, I said "oooh, almost there!" When the Kindle 2 came out, the problems I had with the orginal had been addressed, so I bought it.
I agree that it's a little pricey. I would rather pay $299 for it. But I allow myself to make one big purchase a year, and the Kindle 2 is it for 2009, and I am very happy with it.