Paul,
Hello! And thanks for looking into suggestions for 1.3

- I'll go ahead and put my rating in just for grins.
1. Native Playlist Support
2. Random Support (including native Playlist Support)
3. Web-based interface
4. Giving slave players ability to change master (forwards / backwards in the play list)
I know that's 4...
While I'm not using Jreceiver (was never able to fully get all the pieces working on Windows) - I could help out with any sort of Web GUI Design or mockups.
Thanks Paul!
-Dave