Forgive me, but is it possible to have the macbook hooked up to an external monitor but with different images on each screen? That seems to be what this picture depicts.
Wow, I didn't realise it was possible. I'm sending my iMac back and I'm gonna invest in a 23" ACD instead to save a bit of money...
You know, sometimes its good to read the product specs page before buying something!
From MBP's specs page:
Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors