Not that it's an expensive lens to begin with....
I popped into the local Ritz Camera here, and they had some lenses on clearance. I noticed that this Sigma 28-80 F3.5-5.6 Mini Zoom Macro was being cleared out for $25. Their regular price (and I know that it was overpriced at this) was around $160. I figured that for $25, how could I go wrong! So I bought it. It is an autofocus lens, and it has a Macro switch on it. It's definitely not made form top notch materials...it's all plastic, I believe.
But, again, for $25! So, I tried it out, and here's a picture that I took with it tonight just to test it out. It's a picture of the miter gauge on my tablesaw.