Just wondered if anyone knew where I could find episode stills and promo's, I'd love HQ ones though as they're better for making art. I have found a girl who posts CM episode stills, but there aren't any for S3 and 4, and I would really like ones from episodes from when Rossi joins the team.

Are there any good Criminal Minds sites that have HQ images and stuff.

There's a ton of LJ sites, although most you have to friend. If you do go onto LJ, some good sites are:

CriminalxMinds
DJ Cpaslock --> Has a whole bunch of downloadable links in her memories
Caps Request --> Partner site of Capslock, a comm where you can request caps
Cinegirl --> Vera's lovely, and posts a ton of caps on her personal journal

I think all of these are firends only, but there great sites/people, so check them out. I get all my caps from them.