arm-linux-tools-20061213.tar.gz - Used for building the uClinux-dist under a linux host

bu-2.15_gcc-3.4.3-c-c++-java_nl-1.12.0_gi-6.1.exe - Used for building u-boot under a cygwin host

openocd-r520-20080322.exe - used with arm-elf-gdb for debugging all of the above under cygwin.