Shakshuka that's awful. I hope everything's ok.
I've decided to forget about Greece. Too many islands to choose from.
This is what I have so far, using SkyScanner, Booking.com and an advance search about car hire in Italy (thanks to the posters who suggested those sites)
Flights from London to Rome - return 10th to 19th August - £870 (but I bet there'll be cost to add on eg baggage)
Car hire - mid sized - approx £400
3 nights in Rome approx £500
2 nights in Pompeii approx £250
Ferry to Sicily £30
2 or 3 nights in Sicily approx £2-300
Though I might play with the cost of flying into Sicily first, picking up the car from there and dropping it off in Rome on the way back. I think that'd probably cost more though.
Also, need to think about fuel, airport parking,insurance, food and entry tickets.
No wonder sensible people book holidays in the autumn when the weather's pants instead of fussing over a PC when they could be in the garden in the sun. Gah.
All critiques of my plan are very welcome
please 