Today I bought a used Sigma 28-135mm Macro for my Nikon D7000. The guy had no idea what he was selling because I got it for $25. Anyways here are some Macro's with it.
I'm really happy with this new lens, I've wanted for a while a multi-use macro, it's nice that I can use it like a normal zoom lens, then if need be take it to 135mm, lock the macro and shoot. It actually takes very crisp shots. Couldn't be happier, especially with the price.