I have recently got myself a Ubuntu One account so as to take advantage of the free 5GB storage. Problem is, my HDD is very small (30GB, would you believe! Yeah, stone age etc, but anyway...), if I move all the stuff I want to sync to ~/Ubuntu One, I'm gonna use up all the HDD room real quick.

Can I set Ubuntu One to sync with a directory on my external 1TB HDD? If so, how?