Pat sounds like you want a screen with very high resolution, so that you can display side-by-side windows as they would look on a typical screen. If you're a hipster you would go for a MacBook Pro with Retina display (2560x1800 resolution), otherwise a Dell XPS 15" like this one:

http://blog.laptopmag.com/dell-xps-15-hands-on

The Dell has 3200x1800 resolution. In fact with the Dell you could display 3 windows side by side and they should still layout correctly.

Don't forget to post a picture of yourself arbing on the beach.