Focus: Covers all the basic equipment needed to begin. Type, size, cost, etc.
first things first..
buy more frames (optimally all of one size) than you will need.... this will save on shipping down the road.
I will list a few things from pete-o's list that I think are accessories and not essential...
Inner & Telescoping Covers
tecumseh> likely only useful if you live above the mason dixon line. for what it is expensive, cumberson and likely an excellent weekend resort for the small hive beetle.
I originally bought the one piece plastic frames and they are handy, but I'm not sure how keen the bees are about them. In hindsight, I wish I had purchased at least some wooden frames and that would have given me the option for using either the plastic inserts or the historical standard wire sheets.
Also, up here in the NorthEast you really want to have an inner cover and the telescoping cover.