Photographers - What key lenses/equipment should a novice photographer have?

In other words – what should be in my start-up kit?

I know I could go and buy lots of different lenses and equipment, but what are the key things I really need.

For instance, what lenses would you say are the most useful and flexible to use in a range of situations?

Is there other equipment you have that you use all the time and think would be very useful for a novice? What might people say buy but your experience says I can do without – at least initially?