webbo - i would always try do climbing before running if doing them both in one day
i could do a steady longish run then climb - but if i was putting in efforts/hills - i wouldn't be able to train power after.
its all very individual
also worth bearing in mind what your particular circumstances are - ie length of working day:training time available
every one is different in terms of training load - so what your mate can do, isn't necessarily the same training load that you can sustain. in fact replace training load with stress load and remember to remember that other stressors like work stress and family stress can take it out of you as well as training (ie if your having a stressful time at work, you might need to scale back training to avoid getting run down).
webbo is a hard man - and i am a feeble girly (with the immune system of a dead hamster)