Focus/priority on the PC desktop

I guess this is kind of cribbing the recent thread about Firefox, but does anyone know of a tool or utility that I can install on my PC (or a setting I can change in the registry) that prevents any application from any vendor at any time “bumping” its priority up and stealing mouse focus and desktop frontage?

I want all pop-ups to pop-under. I want any app that just did something to tell me about it by staying the FUCK back where it is (either behind the active window or minimized) and just blinking on the start bar. When application X finished installing, I want the automatic internet browser window thanking me to popup behind anything else I might be doing. I want Outlook to STOP jumping back to the front 17 times while it’s updating the Inbox because fuck man, I’m typing something important over here.

Et cetra.

Help?