I am happy working with my Lenovo Ideacentre touchscreen desktop for editing with CS5 at home, but need a lightweight travel computer/tablet (with touchscreen) for editing, email, and reading when on the road. I've been looking at the Ideapad Yoga 13 and the Thinkpad Twist, both by Lenovo. Both are i7, 8 GB RAM and lightweight. I'm not a very technically savvy person. Will either of these two models handle editing large files in CS5? My old laptop is so slow that I just wait until I get home to edit. I will always have a small drive with me for storage.
Is touch screen really important?
If you can by pass the touch screen requirement then you got the option of Alienware and Asus gaming laptops, yes they arent so lightweight but with the power specs of your choice you can dump need of a powerful desktop - depending if you want to
I think Alienware got a 13' model that can beat and thrash any version of Ideapad and Thinkpad when it comes on video and graphic editing on pro level.