Can a notebook computer replace a laptop?

I am looking for a small light, neat but robust laptop I can take around with me to write anywhere I am. Is there one which could replace my home laptop?

I am deciding whether to completly replace my laptop with a notebook.

Or Im wondering whether to use my (rather heavy and chunky old) laptop at home for my internet access and maybe photo storage and then getting a notebook for everyday use. Ideally I would – if I could, just replace my laptop with a notebook rather then have 2.

Would a notebook computer ‘be enough’ or should I hold onto my old (retro :) laptop for home use?

Also any good review sites where the language is simple and straight forward and doesnt assume you have got all the computer techno lingo as a second language!!

Thanks