Description of problem:
In previous versions of RHEL, the mouse focus, Titlebar action and movement key preferences could be set using gnome-window-properties (System > Preferences > Windows). This is missing in RHEL6 BETA.
Version-Release number of selected component (if applicable):
The functionality still exists in metacity, e.g. I can set my preferred window focus preference using GConf
gconftool-2 --set /apps/metacity/general/focus_mode --type=string mouse
This program is in the control-center-extra package. If you install it, you should be good to go.