I'm new to gaming and I have a PS3

I'm new to gaming and I have a ps3. I am used to casual games and I used to like action/adventure games when I was a kid. I've enjoyed Mario Brothers games on the Wii and I played Uncharted 3 and loved it. Can you suggest some other games I would like? I got Portal 2 and I've been trying it out. It's been making me dizzy though and I'm stuck at a level right now.