why wold you re-upload shit? i get the impression that your computer crashes a lot, and that is the reason why youre uploading all of this video? but that doesnt make sense.
you need to buy a box (external casing so you can connect it) for them. that costs around 40-50 bucks. right now, best buy is having this sale on 160gb seagate drives for 90 bucks
http://www.bestbuy.com/site/olspage.jsp?skuId=7441832&type=product&cmp=++&id=1124432398244
almost all computers have one series for hard drives. and each series supports to drives (master, slave kinda thing)
if you only have one hard drive in you computer, then you dont need an external. externals are generally more expensive - i just bought a 300gb internal for 120 bucks - so you can buy a second drive and install it IN your computer.
viruse only attack drives that have an OS on them.