portinstall editors/vim shells/zsh security/sudo devel/git sysutils/screen x11-wm/hs-xmonad x11-wm/hs-xmonad-contrib x11/xorg x11/slim
もしくは、
setenv PACKAGESITE http://ftp3.jp.freebsd.org/pub/FreeBSD/ports/amd64/packages-9.0-release/Latest/ pkg_add -r vim zsh sudo git screen hs-xmonad hs-xmonad-contrib xorg slim
ServerSetupも参考に