Work will consist of a lot of PDFs, Word and a lot of tabs in the browser, nothing more.
I welcome all your suggestions, but then the price and solid build and reliability is a factor. My laptop tends to remain on around 12-18 hours a day, and I'd ideally like it to last at least three years, if not four.
For reliability I chose the Lenovo ThinkpadX120E because it was quite cheap, and because frankly speaking, other Lenovo Thinkpads are bloody expensive. The only other machines which I can bring within my range with a lot of huffing and puffing are the HP Probook 4430S or the Lenovo Thinkpad Edge 430. Don't know about reliability of either of those models.
*Sigh*, I really wish the X120e had been up to the mark, it looked like the perfect blend of reliability, portability and battery life within my budget.