Fable 3 is worth it. I don't think it was as good as Fable 2, but it's still worth it, especially if you liked Fable 2.
Next, GET ALAN WAKE. It's $10, you would be stupid not to.
After that, give some niche/smaller games a try. These should all be cheap and they're all good for various reasons:
- Bayonetta - balls out over the top action. I generally hate games like this (beat-em-ups like Devil May Cry and God of War) but this game made me a believer.
- Ghostbusters - Who doesn't like Ghostbusters? It's cheap new and even cheaper used. I don't care which version you get, just get it and play it!
- Bioshock - I know you don't like shooters but this doesn't play like most shooters and is definately something you should experience. One of the better games this generation.
- Saint's Row 2 - Don't waste time with GTAIV, this is the game GTAIV should have been.
- Eternal Sonata - It's not a great game but it is great eye candy.
- Need for Speed: Hot Pursuit - should be exactly what you're looking for and I believe it's cheap now








