Since making “the switch” from Windows to Mac as my primary OS of choice, I have become a big fan of Cyberduck. I needed a fast and simple GUI method to edit and move files from Mac to my other UNIX systems. I have used WinSCP and PuTTY for years on Windows, so I really liked the idea of a GUI based SFTP tool. Cyberduck fits the bill (pun intended).
Here are some screenshots of Cyberduck:
