Customizing the boot screen (Windows Vista)

Basically I'm trying to customize my boot screen. I was able to do it in Windows XP but the machine I currently use runs Vista. I'm not talking about the one with the progress bar, I'm talking about the one before it which includes the function options (Press F2 to run setup, etc.)

I'd like to change the entire thing, maybe add a wallpaper or use some kind of template (not sure if those are available) It looks ugly and I'm just tired of looking at it.