OK. I am using a Pentium 4 2.2 GHz machine, Chrome browser, and playing some Pandora tunes. When Pandora is in the foreground, Flash Plugin is using 50% CPU time. When I switch to another tab, Flash cools down to 10% CPU time. So just a tip there, hide that Pandora if you want your laptop battery to last longer or you just happen to need that CPU for something else.
All I want for Christmas is HTML5, Thanks!