hmm. I personally would reccomend The Walking Dead episodes. There are 5 in total an run for $5 a piece They are different from what you have probally played but great storytelling. Another hot item is Journey. It's a really cool an unique game but isn't very fast paced. And if your looking to really empty your wallet check out a full title such as Borderlands 2. You truly get your bang for your buck with any of these fine products.
You might want to wait till next week to purchase the games.
According to the PS Blog: http://blog.us.playstation.com/2013/02/19/psn-game
The winning game in each category is going to be on sale next week.