My current theme.
I used:
Typophone Weather theme
Typophone (app store)--to add my background.
Now, someone might be able to give you the path of the background file so you can edit on your own, and you won't have to buy the app from the App Store.
I'm just lazy so I bought the app.
Final tidbit: with Typophone Weather theme, the Unlock label pulses, which is adds a nice touch to the theme.