@Thomas,
Many religions do inspire fear in their believers. Fear of retribution, fear of punishment for sins and so on. I've never seen the same thing in Buddhism.
Fear comes from one single thing; attachments. What you grow attached to, you fear losing. Buddhism teaches to shed attachments, and thereby shed fear. Even the rebirths are not a cause for fear, but a cause for hope, because it means that no matter what happens, you will get as many turns as you need to get it right. There is no punishment and no reward, there is only consequence, or karma. Fear is it's own punishment, as happiness is it's own reward, and as long as we are attached to things, even the thing we call "self", we empower those things to dictate our fear and our happiness.