Macintosh
M A C A S T 1.0 release 1 .. in my opinion this is probly one of the better mp3 players out there.. the sound quality is far better than soundjam and slightly better than audion.. although it is limited in the skins and plugins compared to soundjam [download]
Mpegger1.1.1 .. really good mp3 encoder [download]
PC
alright i dont know what you expect to find here.. but if you havnt already got winamp.. what the hell are you doing??? it does fucking everything go get it now you dumbasses!!