Let's go ahead and make this a "help me decide what to buy" thread. Anyone can ask or answer.
I want to buy a game on PS3, I have $20 on my account. I'm thinking one of these three:
Assassins Creed 2: I'm hesitant because I already owned and beat it and I still have one and Revalations. (speaking of AC, a trailer for three came out the other day: linksy (SPOILER))
Mass effect 2. I played the demo and didn't like it much but I've heard it is amazing. I haven't played 1 or 3.
Pirates of the Carribean Lego. Contains all four movies. I haven't played more than ten minutes of lego games so I don't know what to expect.
If you have a better idea, then suggest it.