My friend blogs as well, and she found this wonderful site that has blog backgrounds. I saw her super cute background and wanted one as well. BUT i haven't been able to stick to a certain background. There was something about each one that bothered me to no end. So I've changed my background an abundance of times. I'm sure if you've visited this blog before you've noticed how it rarely looks the same twice.
I've settled on this one. Get comfortable.