There are so many solutions out there to handle remote sites. I tried RBrowser and WinSCP, the Finder with WebDAV and a lot of other stuff, but in the end they are all just a little too clumsy to setup and use regularly. And I still used scp/ssh and Terminal.app. But from a Stepwise article I found my current favorite solution:
Now I can just mount the company server via SSH, I can double-click on any of the files and edit them locally and save them back over the network as securely as possible (for me). It works well enough for most operations, although for whatever reason, I couldn't install fonts from the mounted volume.
Another stumbling block is, that for each new host you need to manually connect with ssh the Terminal.app first, because ssh will prompt you like this:
The authenticity of host 'oswald.mulle-kybernetik.com (212.202.151.202)' can't be established. RSA key fingerprint is 45:70:a5:f7:b4:84:f7:a1:18:b8:a4:64:bc:68:c0:24. Are you sure you want to continue connecting (yes/no)?and is not clever enough to figure it out. After you connected once successfully, it's no problem after that.