Ooh, I want masonry! Woodcarving, roofing (to repair holes in my roof so that the rain doesn't come in).
this is where I think I might lose interest, I wouldn't want some type of SIMS type rpg. I mean I like the idea of crafting,growing, and making things specifically so you can fight better, defend better, and heal better.. BUT it would be kind of interesting if you could build your own hut or something.