Monarchs of Britain
Cronological listing of England's kings.
dead link: http://www.britannia.com/history/h6f.html
2020 Update: These days Wikipedia is pretty good for that sort of thing, except in this case Wikpedia gets picky. The monarchs of England are different than the monarchs of Britain at Wikipedia. Britain begins with James I and VI, James the First of England and James the Seventh of Scotland, who oversaw the unification of the two into Britan. (Also he was the King James of the King James Bible.) So one has to look elsewhere for a list from Egbert to Elizabeth II. (Again, Wikipedia begins at Alfred the Great, some five kings and 30 odd years later, because the Saxon kings don't count as monarchs of England to them.)