Take this URL: http://www.bbc.co.uk/iplayer/console/b00vf4rp . It has a silly animated Flash Player which canes my CPU. I'm running with Mac OS X 10.6 on a MacBook Pro 13. I am also running the latest version of Flash:
Can I listen to BBC radio streams without using Flash?
Who's fault is this, I take it Windows users don't see high CPU usage?