muCommander is a lightweight, cross-platform file manager featuring
a Norton Commander style interface and running on any operating
system with Java support (Mac OS X, Windows, Linux, *BSD, Solaris...).

Here's a non-exaustive list of what you'll find:
- Virtual filesystem with local volumes, FTP, SFTP, SMB, NFS, HTTP and
  Bonjour support
- Quickly copy, move, rename files, create directories, email files...
- Browse, create and uncompress ZIP, TAR, GZip, BZip2, ISO/NRG, AR/Deb and
  LST archives
- Universal bookmarks and credentials manager
- Multiple windows support
- Full keyboard access
- Highly configurable

WWW: http://www.mucommander.com