I've recently built a player that supports AAC playback of Shoutcast/Icecast/Rtmp/Http streams directly, and doesn't require any specialized server like FMS, Wowza, Red5 or proxy php script.
It is also packed with a lot of cool features, such as: animated ticker, song history, automatically fetch album art/info, social buttons (facebook, twitter, etc), advanced skin customization capabilities, ad network integration, multiple radio station support, etc.
I'm working on a new version right now, with even more features, including video support, which should be released within the next few days.
You can check out a demo of the old player at: danielbrinca.com/aacplayer
(Please copy and paste the url on the browser, as this site does not allow me yet to post urls)
You may also contact me at [email protected] and let me know if you're interested, or know someone who is.