xmms is basically winamp for linux - it uses the same skins, looks and works basically the same, ect. it's one of the best ones out there, but there are variants. freeamp comes to mind.
for the browsers, i'm a netscape person myself, but there's the opera browser. www.opera.com
- i think... (it might be .org) i suggest downloading the statically linked version. the dynamic one is a bitch to install correctly.