install these groups:
base - default should be okay
devel -
  add make
shells - default should be okay

optional items:
admin
  add shutdown
archive
  add sharutils
  add zip
  add unzip
devel
  add cvs
editors
  add gvim
  add vim
  add emacs
interpreters
  add perl
net
  add openssh
text
  add less
utils
  add pcre (needed by less)
  add cygutils (provides cal and other useful tools)