The G630 is an okay gaming CPU. The games you listed aren't too demanding, so the G630 will get the job done. If you want to play large Battlefield 3 games, or more demanding titles, you probably would want a better CPU.
Which graphics card are you getting? The integrated graphics on the G630 are really bad for gaming, so you definitely need to invest in a graphics card.
the g630 is a budget oriented cpu. at moderate resolutions and moderate cpu intensive tasks, its fine. its when you go into multi core tasks that involve 3 or more cores where the cpu starts to show its weakness.