Transmit X
Shareware
2.3
Internet
Panic
$24.95
transmit@panic.com
OS X
http://www.panic.com/transmit/
Transmit is a great FTP client renewed for OS X. It features synchronization, SFTP support, resumes, multithreading, image and text previews, bookmarks, batch downloads, queues, AppleScript support, and much, much more.