Install Aptana plugin to your Eclipse installation.
It has built-in FTP support, and it works excellently.
You can:
As a matter of fact the FTP support is so good I'm using Aptana (or Eclipse + Aptana) now for all my FTP needs. Plus I get syntax highlighting/whatever coding support there is. Granted, Eclipse is not the speediest app to launch, but it doesn't bug me so much.