MichaelH wrote:is this still a viable career option given that the British economy is collapsing and everyone is looking for ways to retrain?
There seems little chance that the demand for English teachers in your target region is going to be sated any time soon (especially in mainland China) - regardless of the state of the UK economy. And with a CELTA and your degree you should have no problem in landing jobs.
MichaelH wrote:I'm rather baffled by the process of getting a teaching job in Hong Kong, China or Taiwan. There seems to be a confusing number of different types of schools, colleges and ways to apply.
It's not really as complicated as it may seem. This ESL Jobs FAQ
is not specifically about your target region but may clarify some points for you. Someone else can probably answer this point more fully.