It really depends on what the purpose of the desktop is. Gaming? Internet browsing? Pictures, videos, mp3s? Word processing? Windows Vista or XP or...? Etc....
That's a nice case, but if you want to design on a budget there are others that are cheaper and would work probably just fine...but again, it depends on the purpose of the rig.
And speaking of budget - how much total are you looking to spend? If you gave us a number, that might highly influence what kind of goodies you pack in there!