Still working out some stuff.
Sadly I cannot make a second group have Admin access, So its between having a separate Admin group and choosing some people for it, or making the PP group the Admin group.
As for the pictures and links, I'm not sure where the options are for that, I'll spend some time looking through the Admin Panel and see what I can do.
Update: I've edited the permissions for Posting external links and pictures, so those should be okay now, I don't know if that affects clicking this link though.