Hi, I'm wondering about the usefulness of the Liveview display on Olympus DSLRs. Specifically for taking pics of art in a gallery under halogen lighting in order to view the colour/white balance. Does anyone have experience of this - any suggestions? - is it a waste of time? Is it only Olympus who do low end DSLRs with this feature? (Don't want to spend more than £500 incl. lens).