Yeah, the screen is 18.4" diagonally. The entire thing is like 18" across. I did see the Targus bags--they just didn't strike me as aesthetically appealing. Kinda boring looking. This thing LIVES with me, it never leaves my side. For that reason alone, I'm pretty picky about my briefcase. I may be S.O.L. in this case though...I'm not finding any nice leather ones.
Thanks for your help though! May have to cave in and hit up Wal-Mart for the Targus.