Cyberduck 2.6 is available
Cyberduck is the free, open source FTP/SFTP client for Mac OS X that I've been using for about a year now. It works quite well, is full-featured and free (I said that already, right?). You can also get a Dashboard widget, Growl notification and Quicksilver integration for Cyberduck.
Version 2.6 is now available, and changes include:
Turkish Localization
Automatic software update
Dashboard Widget included
Reintroduced transcript drawer in browser window
Transcript drawer added to transfer window
Option to use Network Diagnostics upon failed connections
Cyberduck requires Mac OS 10.3.9 or later.