Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I placed my order of that MBA/iPad case on 2/13/2011 and the ETA has been pushed back to 3/23/2011.
 
The best is a Joli Originals offcourse 🙂
Have mine since the beginning and it still rocks!

il_570xN.223852166.jpg


http://jolioriginals.com/
 
Try the waterfield design sleevecase. Its got a pocket on the back which should fit your external drive.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.