For the first time since the release of Halo 3: OSDT we have a new game leading the preorder charts - Modern Warfare 2 is now out so New Super Mario Bros Wii takes the top spot for the first and only time since the game comes out today. Total preorders have now reached 520,000 units - good for a week one of around 800,000 - 850,000 units.

The full top 40 can be seen below:

Joining New Super Mario Bros Wii on release this week are Assassin's Creed 2 and Left 4 Dead 2. The original Assassin's Creed title sold 570,000 on Xbox 360 and 235,000 on PS3 back in 2007. We expect total week on sales to be similar for Assassin's Creed 2, but more evenly spread between the two platforms - around 500,000 on Xbox 360 and 350,000 on PS3. Left 4 Dead sold just over 300,000 copies this time last year in its first week - we expect the sequel to outperform that by at least 50% - 450,000 - 500,000 units is very realistic.

A number of other games also release next week - Assassin's Creed: Bloodlines (PSP), Tony Hawk: Ride, Harvest Moons on both Wii and DS, Lego Indiana Jones 2, Resident Evil: The Darkside Chronicles, God of War Collection and Naruto: Clash of Ninja 3 on Wii should all have solid week ones.

You can see last weeks chart here, and be sure to check back next week for the latest movers and shakers.