50Gb. 25Gb is enough for all the things I really care about, and 15Gb of that is my music collection! I recommend Dropbox every chance I get, since I really th

50Gb. 25Gb is enough for all the things I really care about, and 15Gb of that is my music collection! I recommend Dropbox every chance I get, since I really think it's an amazing service. You pay 10$ a month for never having to worry about the backup problem every again (not to mention the fact that my laptop and other desktop are always synced). Well worth the money, IMO.