AJAX to the rescue ....
www.MP3tunes.com
You can make your playlists using their library of music for FREE, or for $40 a year you can upload your own muzik.
The great thing about it being AJAX-based, is that I can be using Photoshop, Blender 3D, and Dreamweaver at the same time, and my music player doesn't suck ANY resources from my system ...
