Steam keeps spitting out new top sellers lists, there's another one today that's different from the one we posted over the weekend. We confirmed with Valve the list that follows is accurate, and will try to get this sorted out to avoid future confusion.

1. Call of Duty- Modern Warfare 2
2. Counter-Strike: Source
3. Left 4 Dead 2
4. Borderlands Zombie Island DLC
5. Borderlands
6. Dragon Age: Origins
7. Dragon Age: Origins Digital Deluxe Edition
8. Medieval II: Total War
9. Colin McRae DiRT 2
10. Torchlight