>I'm Going to hope that this Question hasn't really been asked to 
>reently but as I recnetly installed my new lighting and all that good 
>stuff I was hopeing to start using Co2 now in anycase am I to assume 
>that for the diy all I really need to do is get a 2 liter bottle dump 
>in a cup of water a cup of sugar and a few table spoons of yeast and 
>away it goes? Of course I know there is more to it than that like gang 
>valve's and needle's and all that other stuff so if someone could 
>point me in the right direction as to where I can get more info on 
>this that would be great because I would hate to have my CO2 end up 
>all over the wall's as I recall some other people saying at one time 
>or another. 

Check out http://www.cco.caltech.edu/~aquaria/Krib/Plants/CO2  It will 
provide you with the information you have requested.