I am going to be purchasing either a Dillon 650 or a 550B w/ caliber conversion next month. I read the descriptions of each machine on Dillons website but since this will be my first reloading set-up ever I wanted to ask some questions on here. 1. Which of the two presses I mentioned would you buy and why? 2.What other equipment should I order right away with the press (besides dies)? 3. What are the advantages and disadvantages of the 550B and 650? I have been paying massive amounts of money shooting 1000 to 1200 rounds a month and now that my father is also shooting the same amount as I do factory ammo is no longer even an option. I have to get the press very soon so all your help will be greatly appreciated. Thanks in advance.