A friendly GameStop tipster just dropped what we're told is the game-sellers Black Friday sales catalog on us. The dozen-page circular is packed with borderline deals including Xbox 360 sales bundles, deep discounts on some games (.99 cents for Rock Band Track Pack Vol. 2 anyone?) and peripherals.Highlights that I noticed:DS and WiiThe under $20 Wii gamesThe free Nerf gun, with Nerf Blaster $30 for Guitar Hero on TourPSP and PS3Madden PSP Entertainment Pack or Ratchet and Clank Pack for $200Guitar Hero Aerosmith for $30Xbox 360Several 360 bundlesLeft 4 Dead for $50PCWorld of Warcraft Battle Chest for $20What are you eyeing?