Don't forget that you can also use it to see how many and what backward links the page has.... I use the toolbar all the time.

Remember your rank also depends on what other content is out there.
I rank number one if you type in "Johnny Hazzard", and my PR is 3.

On "discount cigarettes" I am ranked 43, but that page's PR is 5.

Takeaway: Pick your fights.

Steve