Awesome. This helps a lot. As soon as I get home I'll probably start ordering these parts up. I doubt of any other big sales ate going to happen that hasn't already.

Should I buy any extra case fans?

Between the two that come with the case and the two that come with the rad, I think you should be fine as long as your ambient (room temps) aren't really high.
I would have the radiator top mounted with those fans running exhaust, and the two fans that come with the case running intake from the front.