Originally Posted by Jimi
Avoid WINE. Find native GNU/Linux applications. TeamSpeak 3 is available for GNU/Linux natively, no need to run it in WINE. Mangler is a GNU/Linux Ventrilo client. Steam and games are pretty much one of the only things you should ever need to use WINE for.
I have no qualms using WINE for windows games that can't be run in Linux otherwise. Of course I agree with you completely if there's a competent Linux native version, use that instead of running a program in WINE.
Abiword and gnumeric are good office applications that don't rely on something like LibreOffice and integrate well into the GNOME environment.
Minecraft is Linux native (because it's java...) and there is a slew of games that run in Linux natively (id games, nwn, etc.) and an even larger lot that run well in WINE (aka valve games).
I use banshee for music, although mpd, rhythmbox, audacious, deadbeef are all good music players too.
Other than that, Ubuntu should already come with just about everything you need.