Plugin to change the background?

Hi,

I currently have a background image as set in my css file so that all the pages on my wordpress theme show this background image. But sometimes, I would like to have a different background image for a particular page. I could probably just add a piece of code in the page.php that checks the page title and sets the body element to have a different css style to get the background image, but I was wondering if there was a plugin to allow me to easily manage this?

Thanks,