While at lunch I was thinking about something...all right, so with my PowerBook I can basically lounge around anywhere wirelessly. I can surf the net, transfer files, and with 3 or 4 hours of battery life (from what I hear with Panther), it seems like the wireless lifestyle is becoming more and more a reality. But I was thinking...is there a way I could output my audio to my home stereo without wires? Currently I connect using a Y adapter and standard RCA cables to listen to my music on my system, since it seems a waste to have a 600 watt surround sound system but listening to my music on these dinky laptop speakers. My speakers are wireless, using IR to send a signal to them without having to wire them into my Pioneer unit, and I have see many wireless headphones, so it seems like the technology is there, but is there an actual product that I could use to actually output the sound from my laptop to my system? Like, either Cardbus, or FW, or USB, or BT, or something...there are all these various wireless technologies, but I can't seem to think of anything that would let me use my stereo without having to use wires...