To get decent FPS on full settings(for BF3) you will need: Nvidia GeForce GTX 560 or higher. ATI Radeon 6950 or higher. Crysis 2 will be pretty much the same as BF3 requirements or require a tad less.
You can get decent FPS from a Radeon HD 6770 if your budget isn't very high or a Nvidia GTX 460. If you want high end cards then shoot for the Amd Radeon HD 6870, 6950, 6970, or the best in class 6990. Nvidia equalivents: GTX 560, 570, 580, or the second best 590.
With any of these cards you can play the game with maxed settings (except the 6770 or 460, you can play with high and some maxed, just not all of them maxed, those are for a smaller budget).
The "GTX 560 Ti" is better than the "GTX 560" version. The 6950 is a pretty good card. I agree, get a 6770 or GTX 460 if you have a low budget.
Get the GTX 560 Ti or HD 6950 if you have some good wiggle room. The best (and most expensive) ones are the HD 6990 and the GTX 590.
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.