Now that you’ve made the commitment, how do you make sure you’re up to speed and injury free when the starter’s gun goes off? There are many resources available with advice for the would-be distance runner, whether your goal is a 10K or a full marathon.
Check out this training guide courtesy of Runner's World, which includes a 16 week training schedule. Their site is full of training plans for any level and length of race.
These sites offer training schedules for runners of all abilities, as well as helpful advice about the proper gear, nutrition, and other areas you should read up on before you begin to train.