I just came across a great website that has a ton of really nice repeating backgrounds. If you have one of my $277 websites, you can replace the background I have put there if you want. I don’t recommend you do. But you can.
The website is: http://www.dinpattern.com/
The patterns are free, but you can leave a donation if you like. Cruise on over and see his repeating backgrounds. You might find one you really like.