I'm back to London, jet-lagged to discover that my computer is completely kaput. Aaargh. This close to just buying a new one...

Update 4.20pm: the computer shop down the road has sorted out my computer (broken power supply! I am such a hardware n00b) for a vastly inflated price that I would gladly pay again to get my computer back in the half-hour it took them to diagnose the problem. I had already spent an hour poking at stuff, not always a good idea when you're jet-lagged...