I probably should crop that out.
if you have CS5 you can use creative fill to get rid of it. with the gimp (and a plugin) you use “heal selection”. IMO you don’t want a square crop on that.
if you find that there are enough instances where you want to remove stuff from a background like you have there and don’t have CS5 the gimp really works well. this tutorial on the resynthesizer will explain what it does. it has both linux and windows downloads. there are other tutorials and that’s not where i downloaded from my copy from but it will give you the idea.
i’m not a big gimp fan (long story) but i do have it and the resynthesizer and really like what i’ve been able to do with it. against, or on, a solid background the results are impressive. quick easy and nice results, what more can you ask for.