1. I wish to set the window mode size to be 1920x1200 (my native resolution).
2. Ideally also have it placed such that the game part is centered and the "window" surrounding it is clipped by the monitor. That way it LOOKS like fullscreen, but the game is actually running in window mode (Allowing me to alt-tab easily and quickly back and forth)...

But I can center it myself every time it runs if I could only get it to make a larger window (1920x1200 pixels to be exact)

3. Also.. I noticed that the game pauses (or is running slower, or something, its rather odd) when the game is not in the foreground (for example, if I click firefox). Is there an option to have the game not pause when it is in the background (during window mode)... that way I could play the game in the background if I so desire while doing something else.