Wal-Mart has the X1 with Halo:Master Chief collection for 329. That's pretty dang good.
It will probably sell out fast, but they have a 1 hour guarantee on it. I'm guessing that means if you're within the 1st hour of people there to get it you are assured one.
Other then that if you have Gamers Club Unlocked (GCU) for Best Buy, that would save you 20 percent on a bundle there.
The only Black Friday ad that has not leaked yet is Gamestop (as of this posting). Check the Black Friday thread in the video games deals section for updates, specifically the first post as it is updated when a new ad leaks.
Good luck!