Asus Vivobook S400 or Dell Inspiron 15z or others

Can I please have your opinons on the above touchscreen laptops, which is better? I couldn't find any reviews on any of the above laptops, so if you have handled or own one, could you tell me about your experiences with it? I'll mostly be using the laptop for photo and video editing, light gaming, web browsing, and office work. My prime concerns are screen quality (it has to have a touchscreen because it's running Windows 8), pricing, screen resolution (doesn't need to be too high, as long as I cannot see the individual pixels), portability, and build quality.

If the Asus and the Dell aren't up to standard, are there any current/future alternatives (such as the Surface Pro, is it worth waiting for) which meet the above criteria?