How to install both KDE & GNOME with Fedora 18

[Sonic]

Hi,

   I've always used Fedora DVDs (as opposed to the live CDs) for 
installation as I could install both KDE & GNOME and a slew of other 
packages without connecting to the internet. I tried F18 beta DVD and 
found that I could select either KDE or GNOME and not both during 
installation.

Is this OK from a KDE perspective? I'm a strong KDE user, but I wish to 
have GNOME installed too. So, what is the recommended way to install 
both? Should I install KDE desktop from Anaconda and then install GNOME 
using Yum later? Or should it be the other way round?

So far, Fedora didn't offer any easy way to install more packages from 
the DVD after installation. The user has to mount the DVD and create a 
repo file and do some yum command line vodoo for installing stuff off 
the DVD.
What is the recommended action plan for F18?

regards,

Syam