Best place for backround templates??

I've had my site up for about 2 months now and I notice that some sites have similar looks.
I have a white background on mine and its too boring.

I've seen a million places with backgrounds but I'm looking for a place that has a template pic.
It might not exist but....

Does anybody know any places to download background images that have a standard look, like a strip of color on top for the logo and a strip on the left for the different links, urls etc??

Thanks - any help very much appreciated.

Josh