Basic macports programs (there are more, but are pulled in automatically due to being dependencies of these top-level programs):
aspell
aspell-dict-en
autoconf
automake
dbus
gawk
hexedit
getopt
gnuplot
gperf
graphviz-gui (haven't figured out how to patch it into PixelGlow's GraphViz
GUI program…)
nmap
openssh
p5-app-ack
pkgconfig
python_select
python26 (default)
python32
subversion
vim
wget