Matt's method should be relatively problem free.....However, please note that when you do that, it does not sync your Faces and Places.
It just creates the events and albums. If you don't need the Faces and Places, it should be OK.
I actually did the same thing in the past by creating an iPad folder and adding sub-folders with photos in it.
Are you able to sync Faces and Places with this method? Basically, I can't find this option when I sync my photos via a folder and not from iPhoto.....