Thank you all for your suggestions. I tried to see one at Adorama the other day, but it was around 2:00PM and there was a looooong wait for someone to help me. I'm glad Adorama exists and it's terrific for mail order, but the store itself leaves much to be desired. B&H used to be similar until they moved into their absolutely enormous store in mid-town and even that can be a long wait at the busiest times. Thanks again!