I have to use Windows at work, and I’ve found that just about everything I use on Windows has an equal or better equivalent on Linux. I find most of the time on my work computer I miss having Linux.
Except for music management… MusicBee is really great and apparently it doesn’t work too well with wine. There are a few applications that do manage a library but I’ve found they all fall a bit short when compared to MusicBee. I’ve taken to just and old time approach of managing music with the filesystem. I also use Audacious for a touch of nostalgia since it works with Winamp 2.x skins :)