This is very interesting. I was playing around and for some reason I decided to see how large of a Finder window I could make by resizing it over and over again. I accomplished this by continually dragging a window offscreen to the left and dragging the resize handle to the right. To my astonishment, I reached a point where I could not do it any longer! I had reached the window width limit! I measured the overall width of the window down to the exact pixel, it was 17,461 pixels wide (not including the drop shadow). I measured this by aligning the far left corner of the window on the far left corner of the screen. Then I dragged the window with my mouse from the far right of the screen until it hit the left side again. I repeated this process 12 times! I was then able to multiply 12 by the horizontal resolution of my screen (1440), and measured the extra (181 pixels) with an application called "FreeRuler". I'd be highly intrigued to know if this limit is universal on all macs. Maybe some of you with some time on your hands could preform similar tests. We could compare results. Just post the maximum width you achieved, your system specifications, and your OS version. P.S. While you have this large window on the screen, try playing with the minimize effect to test the power of your system. Be sure to use the shift key to put it in slow motion! This is very cool.