you will be pleased to hear my wife has not only got used to kde but has fell in love with it and demanded i put pclinuxos on her netbook good job i can never get her to change her mind 
Why do that? If she's happy let her use what she likes.
After all KDE is better than MATE or Cinnamon in many ways (personal opinion).
I have recently tried out MATE and Cinnamon (on Linux Mint 14) for the purposes of a magazine article.
I must say the developers have done a good job in a very limited time.
Of course I'm a big KDE fan and it would take more than a "good job" to make me change it.
But it would be interesting to have these two Desktop Environments in PCLinuxOS.
They would be fast as hell!