thats just how technology works. Like i got my 8800gts and the r600 will prob come out soon and blow the 8800gtx out of the water (not saying it will since all we got is "leaks", but still trying to prove a point
), but im not going to be disappointed as long as my system can handle supreme commander and quake wars until i make some more money this summer to upgrade again.
So you should be happy if you got a e6300/6400 cause they are sweet processors that can handle anything you throw at them right now.
So cheer up and don't let the technology blues get you down