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.
AFAIK, the ONLY network in the UK with EDGE capability at the moment is Orange, which is a shame as their service is poor, prices are high and given their desire to brand the hell out of everything on their network I doubt they'll play nice with his Jobsness. Oh, their *unlimited* mobile internet tarriff has a "fair-use" cap of 30Mb per month too!