Not sure if this is the right forum..

I've been searching for a source of cheap royalty-free images/photographs from a plan/top down/aerial view (ie looking straight down onto them) for use in a small project.

This is proving to be a big struggle. I usually use istockphoto, and while there are some images, there aren't many and even specifying a suitable search for this is proving problematic.

Any tips on finding affordable images like this? For my purpose I might end up buying some toys and photographing them!

Thanks,

Paul