Does anyone know of a site with free background images that can be tiled?

I've google but only come up with horrible ones.

I'm after nice subtle ones.

Thanks

There are TONS of tileable patterns to be found if that's what you're after.
Try Deviant Art for a start. If you're after small patterns, this place has a ton of 'em:
http://www.k10k.org/

Thanks.