Here is the stuff you need from A to Z.  Most of it is essential but for instance, if you choose to only make one gallon then you can leave the wine in the gallon bottle after it is finished.  Anyway, I will try to explain the items as they are listed...

A and B are 5 gallon and 3 gallon Carboys respectively.  C is a one gallon milk jug.  If you choose to make only one gallon at a time this is the perfect jug for it.  A word of caution though - this could lead to another hobby - milk bottle collecting!  That is how we got our start. 

The only reasons we would make one gallon at a time is either we haven't ever tried a flavor or we know the flavor sucks but a friend wants some.  As a general rule, the wine yeast packages are good for up to 5 gallons and seems like a waste to only make one.  

The easiest is the 3 gallon since it is lighter when full and doesn't require as much mixing.  One thing to remember though is that you won't be able to consume all the wine you make.  Some wine will be lost while racking and bottling.  If we make 3 gallons we usually end up with 2 and a half gallons of drinkable product. 

D is a Pampered Chef mixing pitcher.  This is one handy item!  Any pitcher will do but you have to do a lot of stirring.

E is a large funnel.

F obviously is a measuring cup and spoons.

G is a long handled paddle.

H is a racking tube which is essentially a long siphon tube with a length of hose and a special straining tip.

I  is two examples of bungs (no joke), and yes, they go in the bung hole (also not a joke)!  All they are is rubber or food grade plastic corks with holes in the center.

J is two air locks.

L is the racking tube again.

M is corks (only necessary if you are going to use wine bottles.

N is a hand corker (only necessary if you are using corks).

O is a alcohol content tester (only necessary if you are picky or like to brag)