I want to know what a reasonable amount is to start investing in stocks. I have lost money playing blackjack and also won in some trips out to the casino so i am not very worried about risk. I figure you have to go all out if you want something big in return. Also if you are a expert at Investing please list the amount you invested and what you got in return. Thanks in advance.

as little as 1000 dollars. sharebuilder.com