3D-FTP
3d-ftp is ftp client with extremely fast multi-threaded transfer engine. update your web site up to 20x faster, or download mp3 files in fraction of time. features include: syncronize directories, resume transfers, skins, transfer queue with background transfers, recurring scheduling, support for ratio sites, show directory total size (w/ subdirs in tree view), print file listings, filtering, remote editing, sounds, custom cmds, bookmarks, keepalive, clipboar monitoring and more. you can extend the 3d-ftp with api architecture and plug-ins (free sdk and source code available). free download!
http://www.3dftp.com/
FTP Commander
Download one of the most-widely used and most powerful windows ftp client available.
http://www.ftpcommander.com
SmartFTP
Welcome to the home of smartftp, the most popular ftp client for windows.
http://www.smartftp.com
WS_FTP
Ipswitch develops and sells file transfer
(ftp), network monitoring and messaging software solutions. products include
ws_ftp, whatsup professional, and imail server.
http://www.ipswitch.com/products/ws_ftp/index.html