Out of 80 GB I have left a little under 4 GB left! Of course, I would be at less than zero had my backup not died: I used 30 GB in Top Gear Episodes alone! Now I see why people who work with video have multi-terabyte RAID arrays. I still need a backup though - hopefully I can get one as a graduation present... along with a new laptop. And a 360. And some money. And a car.