Speaking of chess, I just found a good deal on a lego chess board on ebay (just the board - someone probably is splitting sets and selling off parts). I thought it would be fun to make our own lego chess players (cheaper too!). Then I'll start teaching DS4 chess. I'm sure he'll surpass my ability quite soon. (I get impatient having to think ahead too far - i'm all for instant gratification!)

I've been checking out many of the games people are mentioning. This forum is turning out to be rather costly... but thanks for all the great ideas!