GUI configuration question

[ratcreature]

Is there a way in Ubuntu (still using Gnome, not that new Unity) to configure the window borders so that a larger area is sensitive to the resizing function? What I mean is that I find it very hard to grab the edge of a window with my touchpad. I move the mouse to the border, the cursor changes, and then want to click, but just wobble a little and am outside the sensitive area already. I often need many tries just to grab an edge. Can I configure that in some way? I don't see anything in the window configuration dialog (there it only asked whether moving is alt/super, and what a double click on the title will do).