So far got Ys Origin, Ys: The Oath in Felghana (excellent game), Trine 2 and Spellforce 2 Faith in Destiny. Also bought the Binding of Isaac for a bunch of friends and would highly recommend it.
Currently got my eye on LA Noire and Alan Wake (mainly the latter) in the community choice vote, and also waiting on Fortune Summoners to hopefully drop further than 50%