I want to install KDE on my Linux Mint Debian Edition (which as of 10 June 2012 corresponds with Debian Wheezy). I already have Cinnamon (a Gnome Shell fork) installed, which has regular Gnome 3 dependencies. Last time I tried to install KDE through aptitude, sound stopped working. Other people also mention problems, see: kde install destroys gnome desktop.
Is it safe to install KDE along with Gnome 3? What are the possible breakages after KDE installation and how should I solve them? What is the recommended way to install KDE on Debian Wheezy?
Edit: I just did it and everything went well. In Debian, to install KDE, just install everything in an aptitude task called "kde-desktop".
Related question: Is is possible to use KDE as well as Gnome on a machine?