One example: raise the temperature, and you get more water vapor. More water vapor yields more clouds, which have a *massive* cooling effect.
Bzzzzt. Completely and utterly wrong. More water vapor does not yield more clouds. Higher relative humidity (not the same thing) yields more clouds. What is going to happen with relative humidity isn't entirely clear -- the processes are not well understood. Even then, whether more cloudiness leads to warming or cooling depends entirely upon the altitudes the clouds form at and a myriad of other complex factors including interactions with aerosols.
You, and many others on slashdot, ought to consider whether or not scientists who have devoted their lives to studying this problem might actually know more about it than you. Trivial inspection of your arguments reveals completely flawed reasoning. The scary thing is that you probably have many of your friends and family convinced that you know better.