Well I already bought the Power Supply and it is booting up just fine and WoW is no longer crashing on my older HDD. However when I tried to reinstall wow on my newer HDD it is getting stuck again on different files saying something to the effect that it isn't able to access this or that file or this or that file is unable to be deleted.

As far as Ram goes I've already switched the Ram out with my older but known to be good ram with the same results so

I am trying to reformat the newer HDD atm and hopefully it goes through this time around.