Qmmp is Audio player built using Qt library, User interface looks similar to Winamp and xmms multimedia player, also you can use xmms and winamp skins on Qmmp.
Qmmp Full features Here.
Download Qmmp 0.4.1
Google Code project more informations Here.
Qmmp official website for more informations about new enhancement in Qmmp 0.4.1 Here.