If you're going with Dell, pay extra for professional support. In the US, it was very good. Basically you aren't talking to offshored tier one customer support

If you're going with Dell, pay extra for professional support. In the US, it was very good. Basically you aren't talking to offshored tier one customer support. Instead you get US based support who are empowered to get you up and running - they replaced several keyboards and a mobo next day, no questions asked. Hopefully it's the same in Switzerland.