Looking for a Nautilus alternative - under Gnome

[Robert Moskowitz]

I am not looking at switching from Gnome to another desktop environment, 
but the removal of the tree view from Nautilus has hamstrung it for 
drag-n-drop. I have worked with it for a couple weeks now, and there are 
a number of DnD operations I do that just don't work.  In some cases, 
between two Nautilus windows I can kind of live with how DnD functions 
without tree view, but even that is hit and miss (constant changing of 
focus to where you are dropping, for example of bad behaviour).

On the Gnome list i was told tree view was deprecated.  No plugins, and 
I don't know how to even begin writing one.  BTW, I DO turn on 'Navigate 
folders in a tree' view, but that is only half of tree view.

So what alternative is there to Nautilus.  I went searching via yumex, I 
did not see any obvious other file browser.  Seems there use to be a 
number of them?