Hey
I use one on my macbook pro. It's pretty awesome. The drivers that it comes with are pathetic. I ended up getting new ones off the matrox website.
The only thing i have noticed is that it will only do a span, you can't have say 1 image on one screen and another on the second screen.
The dock will appear in the middle of the screen, if you full screen a dvd or video it will appear in the middle of the screen.
Sure you can fix the dock problem, download software to move it to a corner of the screen. But the video you can't
You get a VGA cable with it, and a USB cable. The usb cable is a power connection for the unit, so you loose a usb port on the mini. You will need a dvi converter for the vga cable.