Hey there...I am in St. Louis and will be running the Half in April as well. However, I am in West County and hardly make it to Forest Park. Here is a site that has a lot of good groups and resources for your area... http://www.stlouistrackclub.com/. Here is another group that has runs weekly that may be help... http://www.fleetfeetstl.com/runnersclub/runnersclub.htm . I have a blog at http://stlrunner.blogspot.com/ and talk about St. Louis races and my progress if your interested. Good luck with the Half in April and shoot me an email if you have any questions.