Mass Effect 3 for $30 leads this crop of deals over at Amazon today.
Amazon's doing their Gold Box Event thing today (sorry to be a little late on this one), with the aforementioned deal on ME3 along with what looks to be King of Fighters at 1 PM PDT (hint: "SNK's flagship fighting game for the PS3!") and maybe a sweet deal on a FightStick at 6 PM (MadCatz? Hori?). Earlier deals today featured the PlayStation Eye Camera as well as the Move Wand for $20 and $25 respectively.
You can find the full list here.