Malaysia. It's not going to be cheap for long here though, they're really positioning themselves as a tech hub and I think they'll do well.
Utilities are particularly cheap here, I pay around £10 per month for water and electricity. Many working people live on around RM3000 or about £550 a month here.
That said, the real point is paying off your mortgage (or getting fixed low interest). With no mortgage I could almost live on that little in Sweden.