SimpleFTP for Mac

From On-Core:

The powerful yet easy to use FTP/SFTP client for the Apple Macintosh®. SimpleFTP runs on Mac OS® 10.3 or higher. SimpleFTP is a file transfer product, modeled on the RFC 959 File Transfer Protocol (FTP) Internet standard, that emphasizes simplicity and ease of use. SimpleFTP features include:

• Aqua compliant interface.
• Multi-threaded -- you can have unlimited number of simultaneous connections to different servers.
• File transfer resume of uploads and downloads (if supported by the server).
• Seamless multi file and folder transfers, and deletion.
• Bookmarks for easy access to commonly used servers.
• Drag & Drop support. Transferring files is as easy as dragging a file or folder!
• Supports the most popular UNIX®, Microsoft Windows®, IBM OS/2® and Apple Macintosh® FTP servers.
• Supports long file names (Mac OS X limit of 256 characters) and Unicode support.
• Support for SFTP (Secure FTP) connections.