I think I figured out a way to arrange your trash by date deleted. It involves Stacks, so it'll only work in Leopard.
Go to the Finder, press cmd+shift+G to bring up the "Go" menu, type in ~/.Trash , and drag the folder icon from the title bar down to the dock to make it a stack. Now, ctrl/2tap/right click on your new stack and click "date added" under "sort by", and click "grid" under "view content as".
Curious that you have to do it with a stack instead of having a column for it in the Finder, but hey, it works for now.
Very clever, nice find!
I have to say though, to all of you talking about keeping stuff in the Trash and not deleting it: Why are you putting it in the Trash if you're not sure if you want to delete it? I understand making a mistake, but you then go back and get the file, the Empty the Trash right away! Otherwise, you're probably going to end up doing exactly what you're talking about. Apple doesn't need to implement single file deletion, because it would simply encourage this type of behavior which is not optimal or intended.
jW