It's hard to say because you don't specify your screen resolution. The GT 240 is about the same quality as the 9600 GT, which I have, and I play at high settings on 1600x900. However, you have a much better processor than me and more and faster RAM.
StarCraft 2 sets my graphics settings at 1920x1080 and Ultra by default based on the graphics card alone so a better processor and RAM might be all I need to play at a higher setting than the one I'm playing at now. I'm not a hundred percent sure but I think you should be able to play the game at ultra on medium resolutions. At least high on higher resolutions.
If you know a friend who has the game, try to ask him for a guest pass so you can see for yourself.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.