is a small but powerful FTP client with many features. It includes a site manager to store all your connection details and logins as well as an Explorer style interface that shows the local and remote folders and can be customized independently.
OS Win: 2000/XP/Vista

is the easiest-to-use free FTP client software available for transferring files over the Internet.

is a FTP client program for Windows that provides an easy way to transfer files between your PC and remote computers.

is an advanced FTP client. This software uses the common FTP protocol to upload or download files from/to the internet.

is a very easy to use Windows FTP server application with all the nice ftp features included. If you are interested of having your own Ftp server to share files with your friends, I think this freeware is just something that you should have.