Looking for a way to make a difference? Take part in today’s 2008 RADIANT SYSTEMS SPRINT FOR CANCER. The races, which include a 5K run and a 10K route, begin at 8 a.m. at Atlantic Station. Advance registration is $20, while the fee to register on race day is $25. All proceeds benefit the Georgia Cancer Foundation. www.sprintforcancer.com. www.gacancerfoundation.org.