pygame developers strongly discourage using QT, wxWindows mixed with pygame... might be able to get away with it in pyglet, but still have the two event loop issues.

http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla:en-US:official&hs=FfF&ei=ukskSqSDJYLyMoLfgacJ&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=pygame+gui&spell=1
pygame gui - Google Search
http://www.pygame.org/wiki/gui
pygame - python game development


http://www.google.com/search?client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&hl=en&q=pyglet+vs+pygame&btnG=Google+Search
pyglet vs pygame - Google Search
http://aroberge.blogspot.com/2007/08/pyglet-and-pygame-which-one.html
Only Python: pyglet and pygame: which one?
http://leapon.net/en/making-games-with-python-which-library-to-use-pygame-or-pyglet
Making Games with Python: Which Library To Use, pygame or pyglet? | Leap On!
http://www.freelists.org/post/visionegg/pyglet-vs-pygame
[visionegg] Re: pyglet vs. pygame - visionegg - FreeLists
http://matthewmarshall.org/projects/rabbyt/
Rabbyt: a fast sprite library for Python - matthewmarshall.org
http://matthewmarshall.org/projects/rabbyt/docs/rabbyt/anims/
rabbyt.anims - Rabbyt Reference - matthewmarshall.org

after doing some exhaustive searches
looks like the tools used in subcircuit are still some of the best available
as far as mp3 decoding is concerned
pymad

other options include:
pymedia
pygame

http://www.google.com/search?client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&hl=en&q=streaming+media&btnG=Google+Search
streaming media - Google Search
http://en.wikipedia.org/wiki/Streaming_media
Streaming media - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/List_of_streaming_media_systems
List of streaming media systems - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/FFmpeg
FFmpeg - Wikipedia, the free encyclopedia
http://www.google.com/search?q=python+streaming+media&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
python streaming media - Google Search
http://www.scvi.net/stream/soft.htm
Open Source P2P Video Streaming Software
http://www.jejik.com/articles/2007/01/streaming_audio_over_tcp_with_python-gstreamer/
Streaming audio over TCP with python-gstreamer - Lone Wolves - Web, game, and open source development
http://en.wikipedia.org/wiki/Fabrice_Bellard
Fabrice Bellard - Wikipedia, the free encyclopedia
http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&hs=G9p&q=python+play+mp3&btnG=Search
python play mp3 - Google Search
http://mail.python.org/pipermail/python-list/2001-October/108837.html
a pure python mp3 player?
http://pymedia.org/tut/index.html
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia_tut
http://sourceforge.net/projects/pymedia/
SourceForge.net: PyMedia
http://pymedia.org/tut/src/aplayer.py.html
sources
http://pymedia.org/tut/install_src.html
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia_tut
http://pymedia.org/
PyMedia - Python module for avi, mp3, dvd, wma, ogg processing - pymedia
http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&hs=nGw&q=pymedia+osx&btnG=Search
pymedia osx - Google Search
http://www.google.com/search?q=pydfb&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
pydfb - Google Search
http://www.pygame.org/news.html
pygame - python game development
http://coding.derkeiler.com/Archive/Python/comp.lang.python/2003-10/4404.html
comp.lang.python: Re: play mp3 files from python
http://aspn.activestate.com/ASPN/Mail/Message/pygame-users/1865503
Re: [pygame] MP3 and pygame :: ASPN Mail Archive :: pygame-users
file:///charles_b/external/python/pygame-1.8.1release/docs/ref/mixer.html
mixer - Pygame Documentation
file:///charles_b/external/python/pygame-1.8.1release/docs/ref/movie.html
movie - Pygame Documentation
http://en.wikipedia.org/wiki/MPlayer
MPlayer - Wikipedia, the free encyclopedia
http://www.pygame.org/download.shtml
pygame - python game development
http://www.pygame.org/install.html
Pygame Installation
http://pygame.org/wiki/MacCompile
pygame - python game development
http://www.libsdl.org/
Simple DirectMedia Layer
http://www.libsdl.org/download-1.2.php
Simple DirectMedia Layer
http://www.libsdl.org/applications.php
Simple DirectMedia Layer
http://aug.ment.org/datadada/
August Black
http://www.libsdl.org/opengl/index.php
Simple DirectMedia Layer
http://www.libsdl.org/faq.php?action=listentries&category=1
Simple DirectMedia Layer
http://packages.ubuntu.com/search?suite=default§ion=all&arch=any&searchon=names&keywords=pygame
Ubuntu -- Package Search Results -- pygame
http://packages.ubuntu.com/gutsy/python-pygame
Ubuntu -- Details of package python-pygame in gutsy

pygame,
custom interface
write language to enable tests

interface should show different USBs... can see last known state of them