Amazon.com is taking preorders for Activision's Call of Duty: Black Ops for Xbox 360 bundled with a $20 Amazon video game credit for $49.99. With free shipping, it's a $10 drop from our June mention of this bundle and tied for the lowest total price we've ever seen for this title. (The other price low lacked the $20 game credit.) This title is expected to be released on or around November 9.