Hunter:
Dragging can be done by holding the shift key, pointing at the item you want to drag, click and then drag over your open Inventory. Correct me if I'm wrong.
I tried your SHIFT solution, saw no difference between picking up with/without it <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> - I think it's the same as in Div => highlighted in grey, then you're near enough to pick it up. Though I have the feeling that flat stuff (garbage) has a smaller "pick up" radius than the large ones (barrels) - this seems to be a difference to Div.
