2014 update: I've collected So many new games and added so much to my collection that its time to update this very outdated thread. I will Bold parts that have been updated. Still in the process of updating the Gameboy, Xbox and Ps1 sections.
NES:

GameBoy:

N64:

I scored a very lucky deal on that Bangai-o at a convention I went to recently. So happy to finally own it.
Ps1 part 1:

Ps1 part 2:

Ps1 part 3:

Ps1 part 4:

Working on getting Disc 2 of Valkyrie profile....
Ps1 part 5:

SEGA I combined both Dreamcast and Saturn games:

Ps2 Part 1:

Ps2 Part 2:

Ps2 Part 3:

Ps2 Part 4:

Gamecube The loose discs are Sonic Heroes and Mario DDR:

Wii and Wii U I just recently bought a Wii U so I threw those games in too:

the Smash bros was the 5th copy that my local GS sold during the midnight launch. My friend actually won the tournament they had with peach and they gave him a wrestling trophy....Fun night

xbox/360:

You can just barely see the MGS HD collection on top. I wasn't sure where I put L.A. noire, which is why it is not in the picture.
(3)DS:

Part 2:

DS ace attorney:

PSP/Vita:

I am really impressed with how far I've come with my collection. I recently picked up a retron 5, so I've begun to collect SNES/super famicom games. So far I have Kunio Kun Tachi no Banka and Rockman 7. Expect me to post about those in the near future as well.