Thanx for your support to my question!
The opinions about this issue are quite different.
It seems that it could be a ranking factor, but not such an important one. Another problem is that my is ccTLD is not .nl (Netherlands) but .net. My site is also focussed on de Dutch speaking Belgium population.
Hosting in The Nethetlands is no option, because of legal reasons (stricter auditing on betting advertisement). When I will host my site in another country nobody can see that Im the owner of the site. At least this is much harder.
What do you advise me to do? When I will host my site in England, does this really affect the speed of my site?
Does someone knows a good hosting operator that can help me?
Hope someone can help me!