Computer Management - setting up graphs

My Performance Monitor shows no graphs of any sort. I would like to have it show me a couple of things. This is the first time I have toyed with this Admin Tool, so explanations should be kept to a "total newbie" level ... word by word, step by step...

1) CPU usage. How do I get this to show in real time? Can I have it broken out so I can see what's up with all of the quad core?
2) CPU temperature. Same as #1 above.

3) Memory usage.

Not sure how you would do it with that Performance Monitor as I have never used it myself.

The easiest way to see CPU usage is to start Task Manager and go to the Performance Tab. To see it per core: View ... CPU History ... One Graph per CPU

For CPU temperatures you might search for a gadget or application that puts that info in the notification area. I don't use one but others here may be able to suggest some they like.