So one of my PB 'sensible indulgences' is dark chocolate, and I have been on a quest to find the most primal approved brands. While working at a Mom's Organic Market in DC I came across a wonderful company, Fearless Chocolate, who makes dark chocolate with minimal ingredients. I love the 'exploding coconuts' flavor, which only has 3 ingredients! No soy lecithin or any of that crap, just cacao, raw cane sugar, and coconut. I see that now they have 85% dark chocolate which is next on my list to try. I know it's a little pricey, but its worth it in my opinion - especially if you are too lazy (like me) to make your own.
Here's a link to the coconut bar,
70% Exploding Coconuts - Fearless Chocolate Co.

Check them out if you get a chance. I think you'll be pleased.