Click HERE for a Geeklist of all my video walkthroughs
NB: I forgot to mention one minor element of gameplay: in both rounds, if you are the last player to go, you get one additional ability - once during the round, you can build a house/church/lighthouse on a tile where someone else has already built. Only once in a round, but it can make a big difference!
Also, I neglected to mention the "fish bonus". Basically, when you play a score fish score card, in addition to the points you get from the card, you also get points from every fish tile you've built on. That's why fish tiles have additional numbers of them.