I'm from the People's Republic of New Jersey, where we can only buy one gun a month and have to plan purchases way ahead of time. I currently own a Glock G22 (.40 cal) and have a Kimber Eclipse Custom II (.45 cal) on hold till I can legally pick it up in about 10 days. For my next acquisition I think I would like a revolver. So, can someone give me a crash course - I know nothing about them other than what I have seen in movies -- so that is probably less than nothing. What brands, what calibre, what features should I look for?