Anil Gulecha's post:⁞ Viewing dependencies graphically on apt based systems is nice stuff.
It demonstrates the use of 'apt-cache' to generate graphical visualizations of package dependencies using 'graphviz'.
However, as 'apt-rdepends' man page says: Caution, dotty cannot graph larger sets of packages and I found it to be so when I tried to obtain a package dependency graph for firefox-3.0
