5K RACES...trying to run like a ninja and make my afro sweat!

So I just registered for 2 5K races!!!! I'm super excited!!!! My goal is to be able to run the whole time and under 45 mins. My first 5k will be April 22, 2011 and the second one will be May 7, 2011!!!! I'm excited!!! Pictures will be posted the day of each race!!!