Before this gets out of hand like another similar thread, can we all understand that backup over the Internet is ONE backup layer of many? I understand it's not perfect, but it's ONE layer and has advantages that some of the other layers don't have. I'd rather not argue about why Internet backup sucks because, again, it's ONE layer.

Now, assuming that I'm talking about external backup over the Internet, is TrueCrypt a good way to go? To keep it simple and focused, I'd prefer if someone can answer the questions from my previous post...

QUESTIONS:

Can you sync with TrudCrypt? I need to sync about 80 GB of data. In other words, I need it to update only the changed files. I like the idea of TrueCrypt, but if I can't sync, then I can't use.

What is a reliable external database for storing your TrueCrypt files? I need to store externally over the Internet. I'm NOT talking about local storage, and I'm NOT talking about saving to an external hard drive and physically taking it to an external location.