Hi there GhostSLO.
Here's the steps I took to get the latest AMD drivers working on my HD7950's in crossfire.
If you have the HD5000, 6000 or 7000 series GPUs, the following worked for me...
How to install AMD/ATI proprietary drivers in Kali Linux 1.1.0 kernel 3.18
For Radeon HD 7000, Radeon HD 6000 and Radeon HD 5000 series GPUs
Make sure your sources list (/etc/apt/sources.list) contains the 'contrib' and 'non-free' components, e.g. -
deb
http://http.kali.org/kali kali main non-free contrib
deb
http://security.kali.org/kali-security kali/updates main contrib non-free
Update packages, install appropriate linux-headers & fglrx-driver packages
command line:
aptitude update
aptitude install firmware-linux-nonfree
aptitude -r install linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') fglrx-driver
Make a config file:
mkdir /etc/X11/xorg.conf.d
echo -e 'Section "Device"\n\tIdentifier "My GPU"\n\tDriver "fglrx"\nEndSection' > /etc/X11/xorg.conf.d/20-fglrx.conf
Restart system to enable the radeon driver blacklist
Once rebooted use the aticonfig utility to generate an xserver config file:
aticonfig --initial
You should now be up and running with your shiny new AMD drivers!
Good luck.