Can I'm UK based and I was wondering if anyone could recommend a reliable domain name provider that will allow me to register a couple of domain for each country?

.fr (france)
.de (Germany)
.it (italy)
.es (spain)
.nl (Holland)
and maybe some others

Some places were asking £100 per domain! What's that all about?

Thanks,

I would like to give you a recommendation.
visit http://www.plusregister.com. All kinds of domain names no matter national domain names or international domain names can both registered there. The domain name price is very cheap and can guarantee security .
maybe this website can satisfy your requirement