"I knew I was going to need a lot more than that, but loading even FOSS software
on the company computers is strictly forbidden! I took one of my old
laptops (a Micron Trek2, PII 300 with 192Mb ram, 20G hard drive), loaded
with Debian Etch, and kept it in my desk drawer for whenever I had some
time to work on the map. I used Inkscape, because It's easy to use, yet
powerful enough to do everything I needed it to do.
"As my work on the map progressed, I converted the .svg drawings to .png, (Windows doesn't
natively support .svg, not on our network, anyway) and printed them out
for everyone else to edit and add information to, which I then used in
the next version. It took about 6 months, but I finally finished it,
then converted the final version to a .pdf which I took to Kinko's for
printing."