Install Wine on Debian Wheezy (Testing)

UPDATE:

A probably better way to do this (thanks to nekuy and lmdeman) :

1. Add this line to your apt repositories :
   deb http://frickelplatz.de/debian/ sid main
2. Add the following code to your /etc/apt/preferences file to activate apt-pinning:
   Package: *
   Pin: origin frickelplatz.de
   Pin-Priority: 200

   Package: wine
Pin: origin frickelplatz.de
Pin-Priority: 800

3. $ sudo apt-get update
$ sudo apt-get install frickelplatz-archive-keyring frickelplatz-keyring frickelplatz-keyrings
$ sudo apt-get update
$ sudo apt-get install wine

To install PlayOnLinux:

1. $ wget -q "http://deb.playonlinux.com/public.gpg" -O- | sudo apt-key add -
$ sudo wget http://deb.playonlinux.com/playonlinux_squeeze.list -O /etc/apt/sources.list.d/playonlinux.list
$ sudo apt-get update
$ sudo apt-get install playonlinux

Source:
http://forums.linuxmint.com/viewtopic.php?f=190&t=76928#p447869
http://www.playonlinux.com/en/download.html

END UPDATE

1. Get the architecture:
   $ ARCH=`uname -m | sed -e s/x86_64/amd64/ -e s/i.86/i386/`
2. Download the packages corresponding to this arch:
   $ wget -r -A "*_$ARCH.deb" http://dev.carbon-project.org/debian/wine-unstable/
3. Intall packages:
   $ sudo dpkg -i dev.carbon-project.org/debian/wine-unstable/*.deb
4. Install dependencies:
   $ sudo apt-get install -f
5. Delete packages from the HD:
   $ rm -rf dev.carbon-project.org/

NB:
To uninstall a software:
$ wine uninstaller