So im looking into getting a graphics card and i realized my PC has only a 300 watt power supply which isnt all that good. And it really sucked cuz i was looking at the r9 280 4gb and the gtx 960 but now i realize i cant because of my lack of power. The thing is its rlly hard to get money at my age right now so i was asking is it worth getting a bit extra money and upgrading my power supply or should i just go straight into the GTX 750 ti. i have heard it can run most games just fine but im not rlly sure.I play Dayz and CSGO i guess that can give u a guide line of what i play. PS i have never opened a PC/built one so yea im kind of scared to add parts on to it. Thanks if u can help!