Don't normally come around these parts, but this thread caught my eye. Read thriugh a good chunk of it, skimmed some. It looks like you are in the programming phase now, instead of brainstorming, but I can't help but link this. A comic on dev, about cowgirl farming, that might have an idea or two. Warning though, much more anthro type cowgirls.
http://rogueink.deviantart.com/
Gonna try and play this when I get on my computer proper.
