Development Tools
ccache
For saving development time on linux/bsd/cygwin, you might use ccache to make compiles go faster.
See here http://ccache.samba.org/ for more information.
distcc
If you have multiple boxes, you might use distcc to compile distributedly.
See here http://distcc.samba.org/ for more information.
Has a build-in editor, can perform quick search on functions/variables/macros/classes and file lists, can also generate class diagram and much more handy stuff to navigate source code.
See here http://sourcenav.sourceforge.net/ for more information.
Automatic Formatter
Artistic Style is a (free) source code indenter, formatter, and beautifier for the C, C++, C# and Java programming languages. It is a commandline tool unix style, but works on window too. I used it to style code the way wxWidgets is doing it, using these arguments:
AStyle.exe --style=ansi -o -O -V -S -p -D *.cpp *.h
See http://astyle.sourceforge.net/ for binaries