Aside from 12 hours on the buses and another 6 hours at UPS HQ in Zagreb, in monetary terms it's cost us an extra £200 to retrieve our new, replacement laptop.
Hindsight, offering clear 20-20 vision, insists that I could have done this more cheaply and quickly by flying from Pula to Stansted for £65 return (flight time ~ 2 hours one way) and buying a laptop directly in the airport.
However, as I mentioned earlier I have become far more relaxed in my outlook to life and quite honestly, couldn't give a shit. Besides, we can't just run back to England at the first whiff of difficulty, can we?
The experience I garnered was invaluable and seeing Zagreb first hand was compensation enough.
The only downside for me was being away over night from wifey for the first time since we left the UK and that I didn't enjoy at all.