Part of their current sale, todays deals include:
-Dark Souls $7.48
http://marketplace.xbox.com/en-AU/Product/Dark-Souls/66acd00…
-Nights into Dreams $2.48
http://marketplace.xbox.com/en-AU/Product/NiGHTS-into-dreams…
Really the only two cheap notable games.
Pool Nation, 90% off, only $0.99. Respectable metacritic average at 79.
http://marketplace.xbox.com/en-au/Product/Pool-Nation/66acd0…