Classic FTP (Mac)
A newer version of Classic FTP (Mac) is available.Or, Learn More About Classic FTP (Mac)
Full user review
"An excellent FTP ckient. Easy to use and set up."
I can't see what more you can demand of an FTP client, but now I am not a very experienced user when It comes to writing HTML-code and uploading the files.
In spite of that, even I succeeded to get it working at the first attempt.
A great piece of work and I can't find any reason to complain about the performance of Classic FTP.