Going to be another person to chime in to say Dropbox is awesome. I use it for passing podcast recordings back and forth with my cohost (while we're editing),

Going to be another person to chime in to say Dropbox is awesome. I use it for passing podcast recordings back and forth with my cohost (while we're editing), as well as hosting and backing up arbitrary photos, HTML, and presentations. I still have plenty of free space (thanks to awesome stuff like this, and the 2x referrals for students), but when I hit my cap I'll have no qualms about paying.