Hi newcomer and welcome to the Tom's hardware forum.
1- That is a very solid CPU
2- 8GB are more that enough for run any game
3- Maybe a new GPU is a good idea
4- Not problem with the 1TB
If u want know how much RAM u can install, u need check the mobo's manufacturer manual.
ty very much Saint19 i would have picked ur answer for best but the one i chose had a little more but i really liked what you said short and in words i can understand ive been trying to read abut upgrading my power source to runn the nvidia gpu 8800 i think woud there been much point like or is my rig already as good as it can get