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I think you should make your own PC. For running games - you would need a good graphic card, a reasonable amount of RAM, and a good processor. Graphic Card- Nvidia Geforce GTX 670- Link- http://www.amazon.com/MSI-N670GTX-PM2D2G... About 8GB of RAM would be recommended Processor - Intel i5.
Monitor Display - 1920x720. You would need to get a good power supply installed as the graphic card would need a lot of power to run. Get a Razer Mamba / Ouroboros Gaming mouse.
Link- http://www.razerzone.com/gaming-mice/raz... Link for Mamba - http://www.razerzone.com/gaming-mice/raz... Good Razer mouse pad should help. Get a Sennheiser Hd / Razer headset and you shhould be ready to start gaming like a pro. This might cost a little more than your budget allows you and you can tone down the hardware a little though it's what I recommend.
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.