eJukebox is in my eyes the best media player for my mp3 collection available for Windows.
It works with the Windows Mediaplayer as well as with the venerable winamp - including its plugins.
Further information is available on the eJukebox homepage.
The surface of eJukebox can be adapted optically in different ways.
Originally I only wanted to adapt an existing skin - and the result was my Blacklight skin.
Then I designed my western skin as a "rustic wooden skin".
You can download both skins here.
Simply save the archive files in the "Skin" subfolder of the eJukebox program folder and they will be available for selection in the program.