I do quite a lot of running. I have run 3 marathons, and will shortly start training on the fourth one.
I try to do some resistance work - I have a ball and workout bands. I've used them both yesterday and this morning, so this week it's going well. But it's really hit or miss on that part of the workout.
As for the running, I love it! I never thought I'd see the day that I'd call myself a runner, but for some reason it works for me, and I enjoy getting out there and doing it.
Deep down I know I should add some sort of cross-training activity. Oh well, I'm not perfect! Some day maybe I'll get it all in gear....