I am a cheapskate and use Quicksilver. Command spacebar, app pops up. I hate the Finder. I used to use an app called cols that resized finder windows to an app

I am a cheapskate and use Quicksilver. Command spacebar, app pops up. I hate the Finder. I used to use an app called cols that resized finder windows to an appropriate size. Stuck it in the finder toolbar. I looked for the applescript but can't find it. How tough is it to fill the finder window with all the columns so that the Magic Mouse doesn't wag the columns back and forth? Just fill the window. Cols, anyone?