Which one should I get?

I received an Aser m1200 pc as a gift (not that I wanted it but meh )
I got an AMD Athlon X2 Dual Core processor 4400+, 2.3ghz and an ATI Radeon 2100 (which I've never heard of) and about 2gb ram (If you need more info, please tell me, i'm looking for all the help I can get )

Not that I know much about PCs, just basics.
What do you think I need in order for it to be atleast able to play most games? I'm not asking for a super gamer PC which can play Crysis in maximum resolution and the likes, just something able to play most games with good quality in a 1400x900 resolution (max resolution with current screen) Most games I play are 'playable' but with low quality n crap

I am kind've on a budget here, but dont worry just shoot (remember not asking for THE BEST THERE IS)

Maybe I need a new graphics card? More RAM? Different processor? Dunno.
If so, which ones would you recommend?


Appreciate it if you'd help me =)

Cheers.

Thanks for the reply, but why a 4670? Any specific reason?

And I'm asking what should I 'upgrade' (RAM, CPU, graphics card, etc.) in order to make it better for playing games, if what's necessary is a graphics card only then yeah maybe I should've posted it in the graphics section sorry But I'm not really sure what I should upgrade, this is why I posted it here, since I'm asking what to upgrade in general

Thanks for the reply, though. cheers.

I see, thanks for explainin

So you'd say the 4670 is the best option for me?
How much more ram would you suggest?

Thanks a lot for the help. cheers.