Laptop advice, for daily business purposes

hi guys, wanna buy a new laptop for business purposes and very confused the specification that currently have in the market, i do not need a very high end or capacity ones but just need a fast and reliable ones to handle applications like email, open office, internet browsing and etc. preferred i5 3rd generation that I found some for you guys in hope you guys can provide me some guideline. thanks.

1. Asus A55VD
2. Asus S400CA
3. HP envy 4-1053TX
4. HP G4-2205TX
5. Lenova S400
6. Lenova G480
7. Lenova Z480
8. Dell 14R

Budget around 2k+....