You have planned a perfect cast on death character , because you will die as soon as you see a monster . typical beginner mistake D <| sep |> is this election turning all of us into molotov cocktailwielding voters ? SADto paraphrase somebody or the other <| sep |> SLI is not worth it , buy a better one graphics card and you will be set . There are many games that do not support SLI and its kind of a pain in the butt to get it to work at times . That is my two cents . Edit Head to www . pcpartpicker . com and input your parts and GPU , motherboard etc , and it will tell you the watts you have and you can get the psu accordingly . On your GPU . With what that extra 660 to cost you can get a newer amd for that price or sell your current GPU and get like 1060 or 1070 from Nvidia , mxi . Just look at PCPartPicker there is lots of options for your price range .