Well. It depends on what you like in your games. I love nintendo games. I am not too worried about graphics.
I think you should get a Wii. Then you will have extra money to spend on games. And plus. Your friends who don't usually play games will come over and play Wii with you.
But, if you are going to be mostly playing by yourself you might like PS3. I see you like couterstrike.....well......maybe PS3 is the best choice for you.