All of the above info is right on!!
Start out small, I mean a single stage press in case reloading is not for you. If it is then you can progress later on to a Dillon or the like!!
About the best info I can offer is to reload in a room by yourself and free from noise if you can. The least little sounds or disturbances can be distracting. Really by sounds I mean the TV, radio or friends or family members talking to you!!
A double charge or an under charge can both cause devastating results!!
I am anal in my reloading in that I crank out 10 rounds on my Dillon RL550B and then mic and check the weight on EVERY one!!!