1. Your motherboards are motherboard grade, not high grade.
2. Leave the heat sinks on the boards. They are worth $4+ per pound on or $0.50 off
3. Your ram, pci cards, hard drive boards are all worth different values. Separate then into different bins.
4. Floppy disk board is considered low grade. You will find the occasional one that is considered mother board grade but they are few and far between. Snap off the gold pin connector throw that in a separate box and the rest of the board in the low grade.
5. As long as the screens arnt cracked leave them whole. Your buyer will buy them for 3-10 bucks depending on size and condition.
6. your 3rd pic down is considered medium grade. Place that in it's own bucket.