What does a Hacker look for in a new laptop

I have fairly powerful Desktop,running all different types of os like a charm,I am currently in the third year of my CS Engg., and I wanted to buy a laptop(dont know y ,just felt that i wanted one).So what is a coder/hacker like h/w configuration like( i recently started learning asp.net and already know c/c++ )Is a intel celeron m processor enough for coding needs and is portability a issue (as u get in an asus eee pc)