I have a few of domain names and a rather simple website (small company type thing). We are in the process of having a web designer create a new website for us, but I don't want to give access to the control panel for the domain names (and have no way to limit it, it seems), while at the same time I don't want to be the go between guy for it the settings.

Is there a way or a service for me to point the domain's at a 3rd party DNS system, that I can then give access for the web designer, without worry that he can find my personal info or try and transfer my domain out.

Thanks.