I know one guy who contracts with a US-based company while staying in Asia, exploiting the gap between salary and living cost seems like a pretty smart play.
Question for the Londoners around here: what is the salary range like? I gather that NYC and London living costs are similar (with London supposedly edging out NYC slightly), but around here $120K is common (80K GBP), and in finance frequently runs higher than that. 40K GBP sounds strangely low, but I may lack context.