Quick Question on PC

[PeanutJelly]

I really just have to know if i can even run CoD at all... At this point with all the confusion and this filter, which i bet barely affects fps, I must know! and i suck with computer stuff... So you tell me, can i run CoD?

AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
GeForce 8600 GT (Possibly Upgrading if needed)
3 GB RAM (Getting 1 GB more)
2.2 GHz Performance Rated at: 4.4 GHz
Windows Vista Home Premium Edition Service Pack 2 (build 6002), 32-bit

I've tried the Can You Run It? site, put in Arma 2, and it said i could run it, but lower than recommended, higher than Minimal. Pretty much in the middle of the two.

Thanks.