Krys, I think that having an exercise goal rather than a weightloss one is a good idea. I have told my trainer that she needs to sign us all up for another 'fun' run so we have something specific to train for. When I was training for the Bridge to Brisbane I lost heaps of weight.
My goal is to start running again and to be able to do 10km in under an hour. The best I did before summer hit was 1 hour and 4 minutes.