Don't forget SWITCH cards, I used mine in Hong Kong, Shenzhen, Guangzhou and Nanning with no problems at all. I even tried it at China / Viet Nam border, Mao Cai (I think its called)and all was ok. It went ok in Thailand (Bank of Ayudhiya + Thai Farmers Bank) so maybe you could think of leaving your money here and only taking a small amount of travelling cash - not so much to lose should the worst happen?
Barclay give you a Visa backed Debit card with a normal current account, just a thought.
Cheers Oletimer (George)