Never been to Vietnam but I find Vietnamese chicks hot.
Dude... THIS.... Spend the money and go. You will not be disappoint.. I don't know where you're from, but everyone I met there LOVED americans and want to talk to you like you're an old friend. I had such a great time riding a scooter around in the chaos, eating the food, and omg, yes, the ladies are delicious.
As you say, I just need to be fully sync'd with the network, I will receive bitcoin. Can you help me fully sync'd.
There are two ways to get sync'd... You must leave your client on all the time. It will connect to peers and learn of all the blocks. This will take 1-2 days if you're just starting out. I'm sorry, but that is how it is, and a severe limitation for new users. An alternative is to download a 1-2 Gb file (that is the blockchain). Depending on your bandwidth and network stability, this can take awhile in Vietnam too.
A more complex alternative is to use a utility called pywallet.py that can extract the private keys in your wallet.dat file. Once you have extracted the private keys, you can import them to a more new user friendly client to spend your Bitcoins somewhere else. Electrum, as mentioned earlier by me, is a super fantastic client for someone wishing to use Bitcoin in Vietnam. This client allows you to import those keys too.