Goob, Just to add to the other's suggestions.

Right click the shortcut icon for IE in your Quicklaunch or on the Start/Programs menu, choose Properties, change it from 'normal' to 'maximized'. Now open it.
Now right click any link on the page, choose Open In New Window....don't maximize it....instead, use the mouse to resize it to what you want it to be.

Now close the FIRST window you opened, and then close the new one you just resized.

Reopen IE from the shortcut icon again, and all windows from now on shouldl be the size you chose and created.

HTH
Tufenuf