Well, what do you want to do with it? - Do you need lots of screen space? - Do you need lots of local storage? - Do you use lots of applications simultaneously?

Well, what do you want to do with it? - Do you need lots of screen space? - Do you need lots of local storage? - Do you use lots of applications simultaneously? - Do you use large data files? - Do you care how it looks? - Do you care how physically robust it is? - Do you have any existing components that you could reuse (eg. a monitor)? You've said you don't game, compile or render video, which is helpful. But then you say you want fast storage. You said it could be laptop or desktop. There are so many possible answers, you need to help narrow things down a little more ...