I wanted to try out a few different things with the RPi, the first of which was its feasibility as a thin client. After some quick googling I discovered rdesktop, a program to connect into windows remote desktop sessions.
Here was my first stumbling block, it seem that I needed root privileges to install things, and I had no idea what the password was. Turns out that's because there was no password, and I needed to set it using:
"sudo passwd root"
So I installed rdesktop, ran it, and fairly painlessly logged into my windows remote desktop.
The next issue was the program resolution, which I discovered can quite easily be changed by either specifying a percentage ("-g 90%") or using fullscreen ("-f") tags after the server location.
The raspberry pi itself, however, was not using the full resolution of the screen.
After yet more searching, I discovered that the correct mode can be found by typing
"/opt/vc/bin/tvservice –m DMT"
And finding the one that matches your resolution.
This mode can then be added to /boot/config.txt (create it if it isn't there) as:
Changing 58 to your relevant mode found from the above list.