Would be helpful if you could have mentioned your budget.Very difficult to offer alternatives if we have not got a budget to work to. Also what sort of games will you be playing with that rather dated GTX260?
A couple of things though you do not need the Freezer 7 stock cooler is more than enough,your PSU is rubbish, for a start 500W is more than enough and a poor power supply can lead to a lot of problems in the future.
The minimum CPU you should be looking at is an i3 I expect an i5 is out of your reach but even a i3 2120 is a lot better than the AMD FX 6100 for gaming.
Please post budget and we will see what we can get for your money.