Preparing for Windows 7

First of all this ME2 image:
It's just to keep MainMan happy.
Now the topic:
Within the few weeks I'm going to make the move from XP to 7, because it's about time after avoiding the shit storm of Vista.
I want to prepare though as I know absolutely shit on where I should start. I'm going to get a 1TB internal and more RAM but I don't know how to go about with these things.
The first, not really a big problem, but I need to know what's suitable partition size for the system directory. I just need to make sure I have the correct size to mainly install the OS and programs there. Also I sure hope it is possible to change my documents and settings from default to another partition because like fuck am I going to fill up c:\ with Sims 3 saves.
RAM. I would assume the standard is 4GB which is easily obtainable but I already own 2 1GB sticks, for performance should I replace these with 2 2GB sticks or some other method as I worry if cache plays some kind of role.
Now for the operating system itself, what do I want to do when I have 7, what's good to have around and can I mess with the default settings to make it nice, not annoying and increase performance?
This topic is vague as fuck but I don't give a toss so here's another image.


It's just to keep MainMan happy.
Now the topic:
Within the few weeks I'm going to make the move from XP to 7, because it's about time after avoiding the shit storm of Vista.
I want to prepare though as I know absolutely shit on where I should start. I'm going to get a 1TB internal and more RAM but I don't know how to go about with these things.
The first, not really a big problem, but I need to know what's suitable partition size for the system directory. I just need to make sure I have the correct size to mainly install the OS and programs there. Also I sure hope it is possible to change my documents and settings from default to another partition because like fuck am I going to fill up c:\ with Sims 3 saves.
RAM. I would assume the standard is 4GB which is easily obtainable but I already own 2 1GB sticks, for performance should I replace these with 2 2GB sticks or some other method as I worry if cache plays some kind of role.
Now for the operating system itself, what do I want to do when I have 7, what's good to have around and can I mess with the default settings to make it nice, not annoying and increase performance?
This topic is vague as fuck but I don't give a toss so here's another image.
