Don't use Baker's Yeast. I think that I read somewhere that in the early days of homebrewing, folks used bread yeast with some fairly bad results. Primarily, this practice was the result of a lack of brewer's yeast supply - folks simply couldn't get it. With the abundance of strains, availability, and affordability, why would you not get an appropriate yeast for your project????
Get some good yeast . . . as it is essential to the flavor of what you are making. If there is no LHBS near you, get it from an online source. If you can't do this, I'm sure that someone on the list would mail you a yeast packet that would work better than baker's yeast.
Now, take that baker's yeast and make some pizza dough so that you'll have a good meal with which to enjoy your first bottle of homebrewed ginger beer.
