Thanks for the reply!
I don't want to spend much on it, it's just for watching HD videos from internet and occasionally running excel or word or ppt... the most demanding program would be adobe illustrator (that's probably not too demanding? I don't know).
I would love to be able to use wireless internet... and I'd love it to be small, that's why I'm looking at netbooks.
I would love a small netbook like Acer Aspire One AO756-887BXSS. The only thing is, it runs with Intel Celeron processor and I read somewhere that it's not too good (I suppose for very demanding work, but for me?) so I am also considering the Lenovo Ideapad G580 because it runs with intel core i3. I don't know what that means but after hours of reading reviews I think it means something good.
I really like the Lenovo ideapad, the one you suggest is not available in the Netherlands unfortunately. Or I cannot find it in the most common online shops. The cheaper I find is the G580, 459 euro. And it has a bigger screen than the acer aspire one.
If I can make do with the acer (it's mostly because it will go places with me, and because it's quite cheap), I think I'd prefer its small size. But if it's going to get sluggish while streaming, or is not good enough for wifi, and I have to go for notebook instead of a budget netbook, I'd prefer lenovo ideapad and then sacrifice the niceness of it being small.
So... will the little acer do? I'd love to know.