If you buy-in direct to the main event it is $10000, but there are a large number of satellite tournaments with smaller entry fees. Chris Moneymaker entered the 2003 main event through a $39 satellite tournament at PokerStars before going on to win $2.5 million.
The buy ins vary for the different events ranging from $1.5k up to a hefty $50k, the main event buy in is $10k
$10,000.
2010 World Series of Poker - 2010 Main Event Day 1B was released on: USA: 10 August 2010
2010 World Series of Poker - 2010 Main Event Day 1C was released on: USA: 17 August 2010
2010 World Series of Poker - 2010 Main Event Day 1D was released on: USA: 17 August 2010
2010 World Series of Poker - 2010 Main Event Day 2A was released on: USA: 24 August 2010
2010 World Series of Poker - 2010 Main Event Day 2B was released on: USA: 31 August 2010
2010 World Series of Poker - 2010 Main Event Day 4 - Part 2 was released on: USA: 14 September 2010
2010 World Series of Poker - 2010 Main Event Day 2A - Part 2 was released on: USA: 24 August 2010
John Juanda won the 2010 World Series of Poker Europe main event.
will start at the end of may. The main events of the world series of poker 2010 will start on July 5 and will run till 17 July. More details here: http://www.onlinebestbets.com/wsop-2010/world-series-of-poker-2010/
2010 World Series of Poker - 2010 2010-07-27 was released on: USA: 27 July 2010
2010 World Series of Poker - 2010 2010-08-03 was released on: USA: 3 August 2010
2010 World Series of Poker - 2010 2010-09-07 was released on: USA: 7 September 2010