Zoroastrianism and christianity

Has anyone done any research in regards to Zoroastrian influence on Christianity? I have come across some things, usually by accident, that suggest that some important christian doctrines - such as a coming messiah, heaven, hell, and final judgement - have their origins in Zoroastrianism. I have not taken any real time to follow this up but think it could be interesting. If anyone has any resources (web-based preferably), or any comments for discussing I would appreciate it.