dhillan96 :
pete_101 :
Also the Asus version of the 750Ti probably requires a 6 pin PCIe power lead from your PSU, so what PSU is in your computer?
600W Corsair PSU
There are different quality Corsair PSU out there, but at 600W it really doesn't matter as it's way more than you'll need for a 750Ti. Also I'm sure it will have a 6 pin PCIe plug, so you would have no issues at all with that card.
You asked if it's worth buying, that depends on what you are doing with it. For 1080p gaming on medium settings it's a good card. If you want more performance (your CPU could handle a lot more), then maybe a better card would be required, but that's up to you.