xmms it's very similar to winamp (a few years ago it was named x11amp), you can even use winamp skin on it
for video, dvd... i suggest using xine or mplayer (mplayer has some original options like framebuffer output... but it may be harder to install)
thanks hacktarux, i actually found xmms after i posted this, i installed at when installing linux, it was part of the multimedia package, ill try the other two things out
hey malcom, btw, i finnaly got the os x theme installed properly, i had to edit the install file because there were some problems with it, atleast there were on my computer.