I'd say stick with an apple on this. I love PCs but if I wasn't foced into an XP machine for school, i woulda gotten a powerbook. Keep the games on a desktop, laptops aren't as good. They do have mobile video cards (mine does) but they're not as good as desktop ones, their hard drives are much slower, and thier mainboards don't have nearly the performance that desktops do.
I have a D600 Dell, from the latitude series. They have a widescreen version, Rogue has one.