Played a couple of rounds of "half speed" C&C3 with the gang from QT3.  Tom Chick, professional RTS player / reviewer, of course kicked my ass both games but I still had a lot of fun.  Half speed feels a little too slow for me still with C&C3 but it was an interesting change of pace from the usual uber frenetic click fest.  I find it fascinating how carefully balanced a system these games form, modifying just one parameter, like the relative speed of human processing and simulation processing, can totally redefine the experience.

I used to mark myself a reasonable RTS player, but I think I'm 0-6 straight with QT3 games now.