Swine Flu Shot

Although I have never had a flu shot, I am seriously considering getting the Swine Flu shot as soon as it becomes available in October. I am not at all convinced that the flu shot works, because they are always guessing as to what strain will hit, and they are usually wrong, but the Swine Flu shot is specifically for the Swine Flu, which we know is already among us. Also, I am now less afraid of shots since I am on anti-anxiety medication. According to the New York Times, "...the vaccine has not yet been tested for safety or efficacy." And the so now the question is, should I get the Swine Flu shot upon its unveiling in October, or should I wait to see if there are any adverse reactions to the shot, since it it is brand new? Which is worse?