Question: Is there any tool that draws a graphic visualization of a process' memory?

I'd like a graph showing the percentage of pages in physical memory and in the page file.

Answer: 
[Process Explorer](http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx) has several visualization options for both individual processes and the system as a whole.
Using Process Explorer, right-click a process and use the "Properties..." menu. In the "Performance Graph" tab you can see the memory, io and cpu usage of an individual process.