ForkLift

From RaySoft

ForkLift is a robust and elegant file manager and FTP/SFTP client, fully embracing the Apple methodology of bringing incredible power to a beautiful and easy-to-use, approachable interface, it also integrates multiple features you would normally buy in many separate applications. Batch Rename, App Deleter, Archive creation & management, powerful Folder Sync, and the ability to Split and Combine large files are all at your fingertips.[1]

Documentation

Hints

Change the directory using AppleScript
tell application "ForkLift"
  activate
end tell

tell application "System Events"
  keystroke "g" using {shift down, command down}
  keystroke "/Users/Alex/Documents"
  keystroke return
end tell

References