1. Wii Nunchuck controller
2. Wii Remote
3. Guitar Hero III (Wii)
4. Rock Band (PS2)
5. Super Mario Galaxy (Wii)
6. Call of Duty 4: Modern Warfare (360)
7. Sony PlayStation 3 Blu-ray Disc Remote
8. PSP Black
9. Super Smash Bros. Brawl - preorder (Wii)
10. Wii Play with Wii Remote

Just and interesting note.  With the announcement of Brawl delay.  Super Smash Bros. Brawl preoder has droped from number one, where it has been for the last two weeks or so, all the way down to 9.

Link