I suspect that someone will shoot me for saying this, and perhaps I even deserve it, but...
Did someone put angst in the water supply tonight?
I ran a (quick-and-dirty) file(1) analysis across Filespace to help me decide what file types I should have the upload script guess extensions for. Results:
The current Filespace layout looks great on 800x600. But at 1024x768 it looks too empty. If I try to fix that, it's too crammed at 800.