Multi-Sport Marathon Training

Haven't been running much, but I haven't been inactive either. What I wonder about is how this will affect marathon training. I've been core training a little more, spinning doing Tabata intervals, playing full and half-court basketball, and a little bit of weight lifting. In the coming weeks, I'll be transitioning to higher mileage again, especially on the weekends, but for now, I'm enjoying these other activities. I'm still aiming for a 3:15 at the NJ marathon, but I guess I'll have a better assessment of that goal within the next couple of months.