Any 2.5" Sata HDD will work. It is suggested to only use a 5400 RPM HDD because a 7200 RPM HDD may cause overheating, and using a 7200 RPM HDD voids any warranty you may have (that alone should tell you NOT to use a 7200 RPM HDD). Also, the speed difference between a 7200 RPM and 5400 RPM HDD is about 1-2 seconds, hardly a speed advantage to risk destroying your PS3.
As far as how big a GB HDD you can use, I have a friend that has a 640GB HDD in his PS3, and the PS3 recognizes all the memory (minus the memory every HDD takes out). I do not know of anyone that has tried a 1TB HDD, so I can not say if anything bigger than 640GB will work. Systems have a hard time formatting anything over 500GB in FAT32 format (what the PS3 uses), and since a 640GB did work, I would assume a bigger HDD would work as well, but this is only a guess.
If you are skeptical, then stick with 500GB or below. It is confirmed for every PS3 model that 500GB does work.
Any 2.5" SATA Laptop hard drive at 7200 or 5400RPM should work. 7200 runs slightly warmer but it doesn't make a difference things on the HDD load a bit faster.
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.