Cathy, this is terrible, and for you, not good timing at all. I am personally quite paranoid about credit card/atm card fraud and for that reason, I dont do internet banking. Everyone says "Why not - its very safe" but a few years ago a friend of mine had her card done with $6000 of airline tickets and she had to fight tooth and nail to get it back. But, I guess this is really a wake-up call that this can happen anywhere - not just in Thailand. Oh well, at least I know they'd never get that much out of my c/card, I have a very low limit!
I hope all goes well with you trying to get it all back before you leave. Im like you, quite amazed that they were able to do it with a card that you dont frequently use and to put $8500 on it - that is really scary! If it were a card that you used for internet banking on a daily basis, then perhaps that would be more understandable.
I guess we should no longer be thinking "Well ... its not gonna happen to me!!!..."

Kitty