idcastandblast

I fell into a sweet deal on a 550B over the weekend, and am anxious to get it set up to reload 9mm rounds. I have been trying to read about dies, and have determined that many people don't just use the Dillon brand dies. In fact, many folks use a different die from two or three manufacturers. So, my question to you is, is there a "best" configuration for the 550B in 9mm? I just want to spend my money wisely. Thank you for any input.