Oh yes, I didn't read properly, didn't see the -20%. At 400 € there's no better deals, at least not at Dell.
And I only really recommend Dells and MacBooks for laptops
I've got friends with Toshibas, Acers and Sonys, and they work well, I've only ever heard horror stories with HP, and even worse with Compaq. Acers are not fantastic thought, but good.
My suggestion to torrent Win7 still stands though, I've had a Compaq Presario with XP in the past and it came with so much crap I spent an entire afternoon uninstalling stuff and cleaning the registry after a
clean reinstall, very infuriating. I formatted my hard disk and reinstalled Windows to wipe out all the crap I had (viruses, spywares), and what do I get? Eleventy billion useless games and embedded ads. That very day I knew I was done with OEM OSes for ever.
Just turn off Aero in Win7 and you'll be flying.