Yeah I know what you mean about Toms - this should be the link to the 280 page and you can use the drop down to see the 9600GT:
http://www.tomshardware.co.uk/GeForc...w-31366-5.html
Sup Com is interesting - it's also relatively GPU demanding, so the limiting factor switches between GPU and CPU depending on the size of the game (small and the start of games are GPU limited, large and long ones become CPU limited) But I don't have a problem with it on my X2+1950xt. 3gb ram helps though.
I think games might become more CPU limited if they follow the console model - the PS3 for example does have a lot of CPU power to a relatively weak GPU. If PC users expect more cars etc. than the console version then the CPU demand could be even higher.
The other factor is that, netbooks aside, the age of a PC more or less determines it's CPU power - you will struggle to buy any new PC that doesn't have what is actually a darn powerful CPU inside it. The GPU side is a completely different story and most new computers come with less powerful graphics than a gaming system several years old. So if a game developer wants to maximise the potential market size they'll happily code to use as much CPU as possible while keeping things lighter on the graphics side.