For me the list so far goes:

- The Beatles: Rock Band (PS3)

- Guitar Hero 5 (PS3)

- Guitar Hero: Van Halen (PS3) (free with the purchase of GH5)

- Lego Rock Band (PS3)

- Pixeljunk Monsters (PSN)

- New Super Mario Bros Wii

- Wii Sports Resort

Soon I'll be buying Assasin's Creed 2, Uncharted 2 and Modern Warfare 2 and many more games and accessories, plus I'm planning to buy another PS3 foor my living room.

Too many to list. Day one buys were:
Batman AA
Uncharted 2
Bionic Commando (it was my birthday!)
Resident Evil 5
a few XBLA games.

New Super Mario Bros Wii
Batman Arkham Asylum
Punch Out
Pikmin New Play Control
Pikmin 2 New Play Control
Ghostbusters Wii
Anno Create a New World Wii
The Conduit
Broken Sword Wii
Overlord Dark Legend
Madworld(Sold it, crappy game)
Street Fighter 4
Devil May Cry 4
God of War Collection

Still coming:
The Legend of Zelda: Spirit Tracks
Resident Evil Darkside Chronicles

A lot, in the past month and a bit;
Uncharted 2
Ratchet and Clank aCiT
Modern Warfare 2
Dragon Age Origins
Assassin's Creed II (in the post)

Little King's Story
Muramsa
Metroid Prime Trilogy
New Super Mario Bros Wii
Resident Evil 5
Castlevania: Order of Ecclesia
Kingdom Hearts 358/2 Days
Scribblenauts
(most of these games were part of amazon game deals)

Still need to get:
Modern Warfare 2
Borderlands
Dragon Age: Origins
Dawn of Discovery Wii

What amazon game deals exactly? I know they give you $10 back on certain games, also they have a promotion until 21st when yo buy $80 and they take $20 off on select games, aaaaaand they also have many new HD games for $49.99 which was the price of games last generation 

They recently had a buy 2 games get one free deal and a spend $80, get $40 credit. I don't think either of those deals are still going on but they're always coming up with new ones anyway, like the ones you mentioned.

I basically ended up spending like $150 on LKS, Muramasa, MPT, NSMB Wii, Kingdom Hearts DS, and Scribblenauts. Pretty sweet deal.. 

Too much...

NG Sigma 2 (PS3)
NFS: Shift (PS3)
RE5 (PS3)
KZ2 (PS3)
PES 2010 (PS3)
Blazblue Calamity Trigger limited edition (PS3)
Mana Khemia 2 limited edition (PS2)
SMT Devil Summoner (DS)
Persona 4 w/artbook (PS2)
Black Sigil Blade of the Exiled (DS)
RE2+3 (GCN)

Some others...

Oh yeah. I got a PSP and a Jasper 360, too.

killzone 2
MW 2
Uncharted 2
headset
dualshock
Eve online
World of Warcraft expansions
Resistance 2
Prince of Persia
Bad company

Scribblenauts
FF6
Japanese dictionary game

Coming up:
Ordering FF13 from JAYPAN
Ordering a dsi LL
god of war collection

Man December has almost nothing for me...GOOD, more time to play FF13 and this ^extensive backlog of games with no platinum trophy yet.