بسم الله الرحمن الرحيم
To anyone stumbled on my blog upon searching for the answer, here you go. Added the fglrx driver part for libgl1 multiarch lib.
Credits to parkerlredd on crunchbang forum.
So after a while of searching for the simplest way to do this I think I have found it.
1. If on a 64bit machine enable multiarch
sudo dpkg --add-architecture i386
sudo apt-get update
2. Download the steam-install-for-wheezy package and install it
wget https://github.com/GhostSquad57/Steam-Installer-for-Wheezy/raw/master/steam-debian_1.0.0.45-4_all.deb
sudo dpkg -i steam-debian_1.0.0.45-4_all.deb
If it says its missing a package just
sudo apt-get install -f
3. Now before you run steam you need to install the i386 package that provides libgl.so.1 and matches your graphics card
If on a 64bit system
## for nvidia
sudo apt-get install libgl1-nvidia-glx:i386
## for fglrx/ati/amd
sudo apt-get install libgl1-fglrx-glx:i386
If on 32bit (untested)
##for nvidia
sudo apt-get install libgl1-nvidia-gl
## for fglrx/ati/amd
sudo apt-get install libgl1-fglrx-glx
4. Run "steam-debian", let it download the client, and you should then be presented with the login screen.
5. If you get a terminal window at launch that complains about not having jockey-common run
sudo /usr/lib/steam/steam-debian-depends.sh
6. Enjoy!
PS: If you just so happen to be running sid you can just run "steam" to open steam. The "steam-debian" script isn't even needed!
Reference : http://crunchbang.org/forums/viewtopic.php?pid=310824
