Gandi.net is a great international registrar. They are based in Paris, France, and took a public stance against SOPA. They are also the EFF's registrar and have a great web interface. Their slogan is "no bullshit™"
I have no affiliation with them, aside from being a very satisfied customer.
They don't seem to have any two-factor authentication, which is a big deal-breaker to me - compared to Name.com. They don't reply to inquiries about it on Twitter, too.
I have no affiliation with them, aside from being a very satisfied customer.