Windows 7 has a really nice feature that lets you tile a window to the left or right of the screen, allowing easier placement. This is normally activated with the Windows-(left, right, up down) Arrow key combination.
I had searched how to do this with XFCE for a while and today after upgrading to Fedora 18, XFCE 4.2 i found it.
If you go to Settings -> Window Manager -> Keyboard
There is a list of keyboard shortcuts, there is 4 towards the bottom called “Tile window to the (left, right, top, bottom)”. This is exactly what i wanted and have now assigned Windows-Left Arrow key and the other combinations to use this.
It’s a small thing, but makes resizing and moving windows around a lot quicker than manually doing it.