Congratulations if this story is true!

Bitcoin is a very volatile currency, and it is probably a good idea to bring in part of your investment. However, I would still recommend to save most of your coins if you do not want to use them right now. The expected return is much higher than that of gold or similar commodities.

As for the money transfer itself, you can use services like XMLGold. Alternatively, you can buy anonymous credit cards in this thread. This way you can avoid taxes altogether, if that is your desire.