How much are is this video game stuff worth on eBay

I have these things I am interested in selling on ebay.
2x GameBoy Advance Micro (used) (no boxes)

3x Additional Faceplates

1x DreamGear Headphones (from DSi DreamGear starter kit)

2x GameBoy Advance Micro Chargers

2x each of manuals: Instruction, Health & Safety, Precautions

2x Pokemon Ruby (used) (cartridge only)

1x Pokemon Sapphire (used) (cartridge only)

1x Pokemon FireRed (used) (cartridge only)

1x Pokemon LeafGreen (used) (cartridge only)

1x Pokemon Emerald (used) (cartridge only)

1x Super Mario Advance 2 (used) (cartridge only)

1x Quad Desert Fury (barely used) (cartridge only)

1x Shaun Palmer's Pro Snowboarder (barely used) (cartridge only)

1x Scooby Doo/Scooby Doo 2 (2 on 1 cartridge) (used) (cartridge only)

1x Duel Masters: Kaijudo Showdown (barely used) (cartridge only)

1x Namco Museum (GBA) (used) (cartridge only)

1x Barbie: 12 Dancing Princesses (used) (cartridge only)

1x A Series of Unfortunate Events (used) (cartridge only)

1x Finding Nemo (new) (cartridge only)

1x Princess Natasha (used) (cartridge only)

1x Star Wars: Episode III: Revenge of the Sith (used) (cartridge only)

1x Star Wars: Battlefront (DS) (barely used) (original box with game manuals)

1x Brain Age (DS) (new) (original box with game manuals)

1x Noddy: A Day in Toyland (used) (cartridge only)

1x Duel Masters: Sempai Legends [Limited Edition] (barely used) (box in meh condition, game manuals, mint condition 1 out of 5 limited edition Duel Masters cards that came with the game, Atari stickers packed with the game)

That's the stuff. Price for each item seperately is what I need. Thanks in advance.