In reply to Pewtle:
Star jumps, mountain climbers (google if you don't know it), press ups, shoulder press ups (press up but bent at the waist forming a pyramid, yes you will look stupid), superman, side planks, finger flicks (jazz hands), fingertip reaches, hanging leg raises, dynamic leg stretches, then I might think about pulling onto a hold...
I then do six or seven different static stretches when warming down after climbing.
I'm still getting injured alarmingly regularly, nothing major but enough to slow my progress. I refuse to beleive it is age (i'm only 32) and I do think all of the warming up/down helps, but being rewarded with a few periods of injury-free climbing would be nice for a change...