Hi, I have an old dell dimension 4700 tower computer and was looking to upgrade it. I am thinking about upgrading all of the parts inside of it but not upgrading the case itself. I have been looking for different parts that I could use but had no idea which ones would all fit together in the old case. I am looking to have a fairly good computer with decent gaming capacity. Any suggestions for parts that would fit in a dell dimension 4700 case would be greatly appreciated.