I dont think there is any email notification system presently. One way is to mark the page as favorites, (there is a star beside the fb/twitter icons). It is similar to bookmarking. Once marked as favorites, you can come back any time, when you are free and check those pages out. If there are any new comments from the time you have seen last, they are highlighted as blue.

Yes it is ugly, but currently this is easiest way.

EDIT: Another way is to write a script to do the same task as mentioned above. You can then cron the script or run it manually. It will open all the pages that have new comments. Writing the script should not take much time.

None that I know of, but since there's the Recent actions thing, all you need to do is visit CF frequently enough (a blog hangs there for several days usually) :D

UPD: interesting, that proposing an alternative solution gets so many downvotes