Forex is great fun, and it is realistic to make $20k on forex in a day ... it is however also possible to lose that amount ...
For those interested, you can get a free demo account and try with 50 000 virtual $$. If you like it, start playing around with 200$
You can get a free accountwith easy forex
http://www.easy-forex.com
(lost $700 today so far ...)