We can host more than .com, .org and .net.
But to get a .nl domain name you have get that domain name first from a 3rd party.
I shouldn't really recommend any particular company, they all have similar services.
You could try here
http://www.domain-registry.nl/sidn/flat/Home/I found it by searching google.com
I don't know if that company is good or bad, I haven't ever seen them before, but I thought I'd give you the link anyway.
Once your domain is registered, you just need to ask the company you registered it with to make your domain use the lunarpages nameservers.
Further instructions can be found here -
http://www.lunarpages.com/faq/changedomain.html