Thanks for all your responses. I've shot with the Arri S and I know it's superb. I want the camera to practice shooting this summer, using various filters, practice lighting different setups, etc. Basically I want to do a bunch of test shoot kind of things.. I just don't want to spend nearly $1,000 on the Arri to do this. Is their a drastic difference in picture quality and is non-reflex aspect of the B&H HR a big inconvenience?