I do a lot of writing, both in English and in computer languages. Here's some software which might aid Catherine, Tiger and the rest of the team, as well as anyone else interested:

For creative writing I like Celtix. It supports a number of common formats and is useful far beyond the intended audience. Catherine will probably find this useful.

For document preparation and general office, I like Open Office but often use Microsoft Office because that's what others expect.

For pre-press I like Scribus but will often use Pagemaker and even resort to Microsoft Publisher if required.

For project planning I like Open Project but will resort to Microsoft Project if required. Both Catherine and Tiger will probably find this useful.

For testing and development I like to set up virtual machines (and networks) using Oracle VM Virtual Box. There are a number of pre-build machines available. I primarily use Solaris, but since my projects typically need to be cross-platform, I have all virtual machines for all operating systems which run on Intel-class machines.

I have a lot of other stuff I use for web and program development, but I won't list it because virtually all of it comes pre-installed on the pre-built Oracle Solaris 11 Express Developer VM. In fact, the only thing I miss on Solaris is a current Second Life viewer. But I can flip to Windows for that.