This week, Nintendo's Super Mario Galaxy dominates, Call of Duty 4 makes a big splash, and people seem to be getting their Rock Band preorders squared away.

Call of Duty 4 is overall the best selling title this week, singlehandedly taking the No. 1 spot on the PS3, Xbox 360, and PC. Its only real competition this week is Super Mario Galaxy, which managed to take No.1 overall despite the fact that it isn't even available yet.

Even though Guitar Hero III rocked the charts last week, it has fallen out of the top ten, and it seems that Rock Band has moved in to take its place. Aside from being No. 3 overall, Rock Band Special Edition has also taken the No. 2 spot on the top ten list for both PS3 and Xbox 360, as well as No. 3 on the PS2. 

Lastly, the PSP top ten list mirrors a recent Destructoid inter-office discussion about the system. The portable seems to have several good releases in its lineup lately, and this week in particular puts titles like Final Fantasy Tactics: War of the Lions, Castlevania: The Dracula X Chronicles, Silent Hill: Origins, and Disgaea: Afternoon of Darkness at the top. This is great news for PSP owners -- let's hope that the trend continues.

Hit the jump for all of the lists.

[Via Next-Gen] 

Top sales overall:

01.   Super Mario Galaxy*—Nintendo (Wii)
02.   Call of Duty 4: Modern Warfare—Activision (Xbox 360)
03.   Rock Band Special Edition—EA (Xbox 360)
04.   Wii Play w/ Remote—Nintendo (Wii)
05.   Carnival Games—Global Star (Wii)
06.   Halo 3—Microsoft (Xbox 360)
07.   Dance Dance Revolution Hottest Party Bundle—Konami (Wii)
08.   High School Musical Sing It Bundle*—Buena Vista Games (Wii)
09.   Lego Star Wars: The Complete Saga—LucasArts (Wii)
10.   Brain Age 2: More Training in Minutes a Day—Nintendo (DS)

Wii:

01.   Super Mario Galaxy*—Nintendo
02.   Wii Play w/ Remote—Nintendo
03.   Carnival Games—Global Star
04.   Dance Dance Revolution Hottest Party Bundle—Konami
05.   High School Musical Sing It Bundle*—Buena Vista Games
06.   Lego Star Wars: The Complete Saga—LucasArts
07.   Mario & Sonic at the Olympic Games—Sega
08.   Mario Party 8—Nintendo
09.   Guitar Hero III Bundle—Activision
10.   Game Party*—Midway

Xbox 360:

01.   Call of Duty 4: Modern Warfare—Activision
02.   Rock Band Special Edition*—EA
03.   Halo 3—Microsoft
04.   Assassin’s Creed*—Ubisoft
05.   Guitar Hero III—Activision
06.   The Orange Box—EA
07.   Mass Effect*—Microsoft
08.   Guitar Hero III Bundle—Activision
09.   BioShock—2K Games
10.   Lego Star Wars: The Complete Saga*—LucasArts

PS3:

01.   Call of Duty 4: Modern Warfare— Activision
02.   Rock Band Special Edition*—EA
03.   Ratchet & Clank Future: Tools of Destruction— SCEA
04.   Assassin’s Creed*—Ubisoft
05.   Guitar Hero III Bundle—Activision
06.   Heavenly Sword—SCEA
07.   The Simpsons Game—EA
08.   Resistance: Fall of Man—SCEA
09.   Need for Speed: Prostreet—EA
10.   Lego Star Wars: The Complete Saga—LucasArts

PC:

01.   Call of Duty 4: Modern Warfare— Activision
02.   Hellgate: London—EA
03.   The Orange Box—EA
04.   The Sims 2: Teen Style Stuff—EA
05.   Nancy Drew: The Legend of the Crystal Skull—Her Interactive
06.   Age of Empires III Expansion: Age of Dynasties—Microsoft
07.   World in Conflict—Sierra
08.   Crysis*—EA
09.   The Sims 2: Bon Voyage—EA
10.   The Witcher—Atari

PS2:

01.   Guitar Hero III—Activision
02.   Guitar Hero III Bundle—Activision
03.   Rock Band Special Edition*—EA
04.   Guitar Hero II Bundle—Activision
05.   Madden NFL 08—EA
06.   The Simpsons Game—EA
07.   Guitar Hero Encore: Rock the 80’s—Activision
08.   WWW Smackdown vs. Raw 2008—THQ
09.   Lego Star Wars II: The Original Trilogy—LucasArts
10.   Manhunt 2—Rockstar

DS:

01.   Brain Age 2: More Training in Minutes a Day—Nintendo
02.   The Legend of Zelda: Phantom Hourglass—Nintendo
03.   Brain Age—Nintendo
04.   New Super Mario Bros.—Nintendo
05.   Mario Kart—Nintendo
06.   Flash Focus: Vision Training in Minutes a Day—Nintendo
07.   Imagine: Fashion Designer—Ubisoft
08.   Disney’s High School Musical: Making the Cut—Disney
09.   Hannah Montana: Music Jam—Buena Vista Interactive
10.   Hannah Montana—Buena Vista Interactive

PSP:

01.   Final Fantasy Tactics: War of the Lions—Square Enix
02.   Castlevania: The Dracula X Chronicles—Konami
03.   Grand Theft Auto Liberty City Stories—Rockstar
04.   Madden NFL 08—EA
05.   The Simpsons Game—EA
06.   Disgaea: Afternoon of Darkness—NIS America
07.   Silent Hill: Origins—Konami
08.   Star Wars Battlefront: Renegade Squadron—LucasArts
09.   Metal Gear Solid: Potable Ops—Konami
10.   Transformers The Game—Activision