My wardrobe needs a basic black skirt, something I could style to wear both for presenting at conferences and for going on date night.

I need something comfortable to wear on my petite apple-shaped body, but with enough shape or detail to keep it interesting. IN other words, I want to be comfortable, but not feel like I'm wearing the skirt version of pajamas. For my professional work, I don't need something super-formal or business-y, but instead a basic that I can style the way I need with footwear, top, jewelry, etc.

I'm considering one of these. Thoughts? Other suggestions?