i am looking to play my mp3's off my computer on my stereo, but dont want an ugly cable running from my office to living room. i've seen these transmitters around for ipods, etc and wondering what experience anyone has with them. what is the range? who has the best build quality? i know that in terms of sound quality i will only get FM stereo, but since this will only be used for mp3's, i am not too concerned with that. any recommendations are welcome.