Sony VAIO FZ21E laptop?

2.8 kg is fairly portable, that is around 6lbs. i have found that what makes the difference for me is how much i carry around in the way of accessories, because i always seem to carry a bunch of gear that i hardly ever use(external drives, gaming controllers, various cables, ect.) so, i think if you limit the amount of crap you carry around with it, you will find it to be pretty portable...(ramble)