Please don't just list the website, please include the name of the part along with the website for faster responses. When people just see a website, it makes them not want to help you. Also, what is your budget for this build, because we can help you reconfigure the build to be more efficient if we knew your budget.
Aside from those comments, that should work well for CoD4, CSS, and Minecraft. I can't say they'll play CoD4 max if you have a bigger monitor, but it should play it pretty fast and on a high res.
I would read more reviews before deciding, as some reviews are sentence long reviews, including: "CM didn't fulfill rebate", "IT DOESN'T WORK" "the fan spin very slow" "It's trash"...very vague, I only read reviews that are helpful, and describes the problem, then I make a decision. The computer not working could be multiple problems but people find it easier to blame something right away because people are lazy ( i know I am). Also, I agree with you, I've read some reviews on NewEgg about the FX-4100 and how the motherboards need a new BIOS, meaning you need another CPU to install the new BIOS then you can install the new CPU...which isn't helpful