okay, ive decided i should invest in a backup drive. i have about $100 saved now, but hopefully around $150 by the end of the month when my ebay auctions end. i hear its good to get twice the size of the amount of storage you used. that would only be an 80GB drive. it has taken me 3 years to get 40 GB's, and in the past year it has only grown about 5GB. am i right in saying i should get somethign a bit hefty-er than 80GB? 120? 160? i am probably going to get one of the western digital passports if that makes a diff. just wanted to see what you guys thought before i spend all that money.