When I saw all those beautiful screenshots full of eye candy, I can only say, that despite having a dual core processor with 3 Giga Bytes of RAM, I am still too old fashioned to waste them. In particular, I have a great repulsion for unnecessary processes running in the background just to produce some info on the desktop that I can get by fetching a terminal and typing a command.
KDE4 has lots of eye-candy if I decide to have it, but I prefer function over fashion. Maybe, I am getting too old...