where can i find a decent image to put in my layout

Uhm. Doesn't it depend on your likings? Try PhotoBucket.

You can check the graphics section of Createblog. People have submitted lots of photos.

http://www.createblog.com/forums/index.php?showtopic=14636

Moved to graphics help too.

Depends on what you're looking for, but once you figure out what you want for your layout google it or something. This isn't the appropriate place to be asking that. We're not going to give you an image you should use. It's all up to you.