Thanks for the info Zero. I'm in pretty good shape already. I played high school baseball this spring, had a membership and worked out at the gym this summer, and worked construction this summer. When I worked out on my own for baseball and a few times this summer I always warmed up with 2 miles, ran some bleachers or sprints and cooled down with a mile. I'm interested to see how far I can run if I push myself right now (I would guess around 6-7 miles).
The half marathon of Thanksgiving day is through Downtown Dallas, and I actually do not know where the marathon is during the Spring, (my brother told me about it, but didn't tell me where it is) but most likely it is also around the Dallas area.