I have to wonder at anyone who cares about having 6 USB ports rather than 4... it's a bloody laptop ! 6 usb connections is insane. The only way it would be worthwhile is if two were moved to the Right Hand side of the laptop.
Having said this, I love my new 9300 although I get a maximum of 2.5 hours on the 9-cell battery playing Civilization IV... no undervolting, although it does run maximum battery. Still, the game hammers the graphics card so this is not all that surprising. With a 6800 Ultra or a 7800 in there, I suspect that battery life is under an hour, which makes it pretty pointless having a laptop, to me.