FileRunner is a two pane file manager for Unix and Unix like systems. It is simple and efficient and has a built-in FTP and SFTP client. It also does a reasonable (and improving) job on Windows systems. New and improved from a FileRunner of long ago.
Thread dump viewer is a powerful tool for thread dump analysis. Opens thread dumps from Sun JDK for Windows and Solaris, HP JDK and IBM JDK for Windows, Linux and AIX.