Do I need a 64bit processor to run a 64bit Operating system?(like Windows 7 X64)?

No not really I have done some testing myself actually on high graphic demanding games 32 bit system tend to perform better than 64 bit. I'd suggest you to install 64 bit OS only if you have 4+ GB Ram otherwise stick with 32 Bit. As for game compatibility any new game will run on either 32 or 64 bit.

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.