Yes, Vista seems to only use 3.5 gbytes, even if there is 4 gbytes available. I'm not sure that 64-bit is really faster than 32-bit; it should be, of course, but it also has to allow for 32-bit software and hardware, and so it needs to be able to handle both. A friend who had a 64 bit operating system figures that the systems try to do both at the same time, and hence slow the computer down - please note: that's his description.
But I can't see why you'd need the extra gbyte of RAM - that seems a bit excessive. As for whether to do to 64-bit OS - look at your actual usage. If you're doing ordinary office type stuff (documents, spreadsheets, basic databases, e-mail, some browsing) you won't notice much of a difference.
It does make a difference in games play, video/large picture file editing, 3-d rendering and other high tech manipulations.
I'd say Yes. I'm using it right now and I couldn't be happier! This is the first Microsoft OS that is actually worth paying for it!
I've had almost zero problems with any new hardware or vista certified stuff, older hardware and programs from pre XP days may have an issues but, I haven't had any real ones.
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.