13.3" MBA + Dropbox
Best laptop I've ever owned.
I say Dropbox because, as stated earlier, it's always a good idea to have a backup of your homework and whatnot in the cloud. I'm a bit paranoid about data loss, though. I have all my data backed up twice and a copy of all my important (encrypted) documents on Dropbox.
EDIT: Holy.. This thread expanded by a page in the time it took me to type that out
EDIT: Time stamps... That was weird.