Shoe of the Week: Back in Black

Today's post is a shopping post.  I'm looking for a sharp black patent pump.  Yes, I own black shoes, but nothing that has the sexiness of these contenders:

Yves Saint Laurent - but could I actually walk in them?

Gucci - a little less intense, but then again, maybe it's intensity I'm after.

Pour la Victoire - hidden 1" platform with a 5" heel, but the description says it has a 3.5" pitch.  Does that mean I could walk in them?  Not surprisingly, these are the most budget friendly.