Getting display photos for your theme

Hello everyone, I was wondering if anyone knows of a good legal site with stock photos. Stuff like home interior, expensive cars, etc etc.

I took a look at the envato assets but after looking around it seems no one uses them?

I use Flickr most of the time.

Hey Matt Adams thanks for reply. I was thinking of using Flickr before but I just wanted to make sure.

I can use any picture I find in the Creative Commons section for selling?

http://blog.themeforest.net/resources/photos-images-and-icon-resources/