Has anyone tried this? Sp4 is my only computer and sometimes I work in my home office using an external monitor where I put reference photos and some tool/ option windows from Corel Painter/ Photoshop. That leaves me more painting space on the sp4. It's still cramped and I'd like some more drawing space when in that setting. The sp4 would just run the programs and intuos tablet, I would have the canvas on the external and would still have room for reference photos and option windows. I'd like to hear some success stories before spending $500 on an intuos pro to find out it doesn't jive with the surface pen drivers. Google came up with a result or 2 but not enough to convince me it's not a gamble. If I bought it and it didn't work out well it would cost me another grand for a desktop pc.