Insufficient Inventory Report!

I would LOVE to see a report that shows insufficient inventory that I could use to reorder. I don't just keep everything stocked on the shelves -- some items i keep but most I order as needed, so this would be so helpful!!! Ideally it would be a report that shows numbers needed, or basically an inventory status report that includes all statuses of orders and shows negative quantities if you've over-allocated or committed products.