^ I am not sure how good is that PSU, never heard of it,...
I again stress the fact that for a PC with a discrete card, you should have a good quality PSU, else it would result in these -
- bad 3D performance
- crashing games
- spontaneous reset or imminent shutdown of the PC
- freezing during gameplay
- PSU overload can cause it to break down
So spending so much on other parts and skimping on the main part that drives the PC will not be a logical thing to do,...
You could do this - Drop to a single 2GB RAM stick for now, then get a GTS 450, it is also a very good graphics card, so with the money saved, get a better PSUhttp://www.tomshardware.com/reviews/gaming-graphics-card-radeon-hd-6870-geforce-gtx-570,2834-3.html