What to play?

Laptop specs:

2x2Ghz

4GB RAM 667Mhz

Radeon HD4200

A game you'll find fun?  That's just a guess of course.

i dont know, i got an old pc 

I was kind of just messing with you.  If you want real advice you need to let people know what genres you like.

I figured. I pretty much like every genre. I'm about to try AOE II HD

My best advice would be to get Steam and try some demos out and see what works for you.  My guess is games like Half-Life 2 should run fine but I'm not an AMD or laptop expert so I could way off.  You can also try the demo for Bioshock and if that runs well, almost any other game built with the U3 engine should too.

I beat Bioshock (Only on easiest difficulty though) plus my laptop only goes over min system requirements but if I were to play HL2 I'd start with the first one.

I beat Bioshock (Only on easiest difficulty though) but if I were to play HL2 I'd start with the first one.PS2_PC_FAN

I was talking more about using the games as benchmarks to see what works and at what resolution, etc. 

I just use this, its quick. http://www.systemrequirementslab.com/PS2_PC_FAN

Source games

You played Bioshock on that? Well, you can pretty much play any UE3 game then.bonafidetk

System Shock 2, Clive Barker's Undying, and/or go to GoG.com and find yourself something. You could also try Oblivion and Fallout 3 on lower settings.slabber44