All right, I just made the switch to shooting in raw. Very scary for me, but I figured that I had 'the basics' down enough to trust that I was shooting ok. My question is is there a benefit to using the large raw format. I'm shooting with a canon 7d, mainly doing portraits and using a 50mm. I would like to be able to fit more on my 4gig card. Or maybe I am still taking too many pictures and hoping for the best...what do you pros do?