I am a big fan of Storage Drawers. One of the things I find the most fiddly is when you have a mob farm and are trying to deal with the resulting drops. I have a few ideas on how to deal with them.

The ideas revolve around a few machines and such that are available in other mods. Specifically Thermal Expansion, Tinkers Construct, and Industrial Foregoing.

Items made of metal can be put into a furnace and you can usually get back a nugget of the base material. WIth Thermal Expansion, you can use an Induction Furnace and get back about half the materials used to make the item. With Tinker's Construct, you can smelt them and get back nearly if not all the materials used.

My first new drawer would follow along with the ideas of these. One of the gating options would be to require the underlying mod as I suggest in the recipe.

Reclamation Drawer
Takes crafted Metal and Leather items and returns some of the material to craft. Eg. Iron pick returns iron, golden boots returns gold.
Three types
Type 1: Acts as Furnace
Type 2: Acts as Induction Smelter (requires Thermal Expansion mod)
Type 3: Acts as Smeltery (requires Tinker's Construct Mod)
Recipe:
Type 1: Furnace Center, drawer on either side, cobblestone top and bottom rows.
Type 2: Induction smelter Center, drawer on either side, stone on top and bottom rows.
Type 3: Smeltery Controller Center, drawer on either side, obsidian top and bottom rows.
Requires RF power

Some people would want to save the enchantments that would be on some of the items. In Industrial Foregoing there are a set of machines that will sort, and remove enchantments onto books. The non-enchanted items are all that is left.

The other two drawers I am suggesting work with those ideas. The first would take the enchantments off and put them on books, much like the Enchantment Extractor. The second would help with storage of those books.

Enchantment Remover
Recipe: Enchantment Table in middle, any drawer on either side, stone above and below.
Use: Removes enchantment from enchanted items, placing enchantment into a book.
Requirement: a book and power per enchantment. Must have Library Drawer to output books. The item may be destroyed or sent to Reclamation drawer.

Library Drawer
Holds enchanted books. One drawer can hold up to 32 books, modified by upgrades.
I realize this may be the hardest one to accomplish but there are shelves and such that accomplish this so I am sure it can be done.

I hope these ideas help in some way.