Actually if work is concern, i will recommend ultrabook categories if you are commuting to work everyday, meeting clients, or perhaps going to places to do presentation.
Laptops like fujitsu UHX, LG gram or any laptops under the ultrabook category that is below 1kg. These category is best suited for the above needs.
Although there are better laptops in 1kg to 1.4kg category, they tend to be a little heavy if you gonna carry a long time. But if you just head to office and back home, then this weight is manageable. YMMV.