I have never tried the Farmers of the Moor expansion for 'Gric. We honestly haven't played the game in months and had barely started to use the cards even then. If we can get back into it, I'll think about checking it out! What kills me about Agricola is that I always feel rushed and it's almost always over before I feel like I have my little economy working for me. I bet that has to do with it being an ultra-Euro game and it being tuned to all hell, but I wish it was less stressful.
There's a 2-player only Agricola game coming out this year that's supposed to be less intense. I'll see how the reviews are, but that might be a better fit for me than the original game. It's supposed to focus on Animal Husbandry, exciting.