FileZilla - a famous FTP client. Completely freeware. Each new version has a few new interesting and useful features.
Download FileZilla here for free

FTPRush v1.0.0.571 - a simple and pretty useful FTP client, which supports FXP protocol. FTPRush can work with SSL, automatically checks SFV files and much more. FTPRush does not require installing and has multi-lingual support.
Download FTPRush v1.0.0.571 here for free

FlashFXP v.3.2.0 build 1080 - popular FTP client. FlashFXP (except of standard ftp features) allows to control uploading/downloading files between servers (FXP). FlashFXP has the feature to resume download after connection lost, directory synchronization, planning work etc.
Download FlashFXP v.3.2.0 build 1080

FileZilla v2.2.13b - a freeware but very cool ftp client. FileZilla allows to do almost everything. FileZilla has easy and intuitive interface and flexible settings. FileZilla is a freeware.
Download FileZilla v2.2.13b

FTPRush 1.0.561 RC6 - another cute and functional FTP-client with completely adjustable interface. FTPRush can perform operations between two ftp servers (FXP), resume unfinished downloads, synchronize folders and much more. It's possible to create scripts for automatical things. FTPRush now supports SSH, XCRC, TFTP, mouse marking.
Download FTPRush 1.0.561 RC6 here

FlashFXP 3.1.5 build 1054 Beta - a very powerful FTP / FXP client with a lot of features for advanced users. FlashFXP will be useful for both regular users and site-owners for their sites automatical update. FXP technology allows to copy files from one FTP server to another bypassing the your own computer.
Download FlashFXP 3.1.5 build 1054 Beta here

CuteFTP Pro 6.0 Build 12.21.2004.4 has been updated. In the new vesion it's possible to connect to multiple servers using different connection types (through http proxy, socks, firewall). Download CuteFTP Pro 6.0 Build 12.21.2004.4 here

CuteFTP Pro 6.0 Professional - a new version of a very good FTP client. CuteFTP Pro 6.0 can resume suspended downloads, has very handly site bookmarks list, can work with the group of files. CuteFTP Pro 6.0 supports scripts and user commands and has internal Connection Wizard.
Download CuteFTP Pro 6.0 Professional here

FlashFXP 3.0.2.1045 has been updated. FlashFXP - a great ftp client utility with intiutive interface. Can perform operations betweek two servers (FXP), resume incomplete downloads, synchronize, plan tasks etc.
Download FlashFXP 3.0.2.1045 here

FTPRush v1.0.0.521 RC5 - another cute and powerful FTP-client with completely configurable interface. Can perform operations between two servers (FXP), resume incomplete downloads, synchronize folders and much more. It's possible to create your own scripts for automatical working. FTPRush is a bit slow, though.
Download FTPRush v1.0.0.521 RC5 here