FileAnt is a File Manager (like explorer) on tabs (like UltraEdit), it is also an Ftp Client and has nice features such as folder pie charts, and a viewer for commonly used file formats. It now loads almost instantly, uses very little memory. The Ftp Client is multi-download (you can keep browsing while downloading lots of files). The Pie Chart features 2D telescopic browsing. Advanced tools let you modify file dates, sync folders, and change file attributes en masse. There is also a handy little mp3 player in the tray.

FileAnt is the Freeware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  30USD.