I'll third gandi.net. I use them for all my US-based domains. Their slogan is "No Bullshit" -- and they live up to it. My only complaint is that DNS changes

I'll third gandi.net. I use them for all my US-based domains. Their slogan is "No Bullshit" -- and they live up to it. My only complaint is that DNS changes through the webapp take 10-15 min to propagate to their authoritative zone files, making DNS cut-overs a little slower than I'd like. But all in all, highly recommended..