For new recruits who have not done much running before- GET YOURSELF A GOOD PAIR OF SHOES.
This can make all the difference in your training, from increasing your times to preventing shin splints.
If you're from Edmonton a good place to go is Fast Trax run/ski shop.
A professional will have you run on a treadmill in store and watch your gait, among other things and determine the right shoes for you.
I didn't realize all the things factored in to determine what shoes are good for you...
Most of the staff are regular marathon runners (Death race, Lost souls etc.) not just random shoe salesman so they know what they're talking about.
Here's a link to their website:
http://www.fasttraxskishop.com/TAKE CARE OF YOUR FEET