No if you are intending to upgrade your PC by adding another stick of RAM then it has to be ddr2 553mhz. I would suggest you just buy 2 stick of RAM running at 800mhz because it does make alot of difference. However you have to make sure your motherboard supports that sort of RAM speed.
Go onto crucial and then download a software that will detect what type of RAM that would be compatiable with your motherboard. Yes it would be reduce to the lower speed of 533mhz if you install 2Gb 800mhz. I actually notice that my bootup time with 1GB 800mhz RAM is on par with 3GB 533mhz but ofcourse 3GB still is better.
I think it your case its prob better to have 2GB 800mhz then 3GB 533mhz.
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.