Jossnaz,
If anyone could tell when the next correction was coming he would be a very rich man. Nobody knows, but I do know this. If you sit on the sidelines waiting for it, you will lose out on a heck of alot of opportunities to make money.
Here is a 57 yr chart of the SP500 (which in general terms IS the stock market)
http://finance.yahoo.com/q/bc?s=%5EGSPC ... z=l&q=l&c=
The big dip at the end of 2000 was the biggest stock market crash since the depression, but yet in the grand sheme of things, its not much more than a blip on the radar.
2 things are certain
1) There will always be dips along the way and
2) The stock market will be higher years from now than it is today.