As I posted on the bargain thread earlier, the Standard edition of
GameMaker Studio is available
free at the moment (currently £30 on Steam). Pro version is only $35 (£60 on Steam).
I downloaded it and have spent most of the day going through the first 3 tutorials. Seems very impressive stuff, and there have been some great games produced using it such as Spelunky, Hotline Miami and Nidhogg.
I did a search on the forum and noticed some of you have bought it in the past. I just wondered if anyone got to the stage of producing anything with it. Would love to see the results.