NameCheap is what I use if I want privacy. Also, I believe ICANN allows you to use your position title in your company as the registrant contact, so if you were to set up a reliable email forwarder strictly for your domain, you could basically get privacy for free.
If you want "real" privacy, consider NameCheap, as they give it away for free. If you register more names later, you got a new WhoisGuard subscription, which is transferable. :tu: