Sooo...Watchmen

I've finally started reading the graphic novel, because somebody (and another somebody) urged me to do so, and it's totally depressing, yet awesomely compelling, and I can't stop reading it and now there are only 4 issues left, and.... erm. Help?

Also, somewhat cryptically: the Lost producers have read this, too, right? Some elements seemed *really* familiar.

ETA: There are now spoilers in the comments.