As the title says, I'm looking for help on upgrading my video/graphic card, but I can't seem to find out on what would work on my computer. I'm also on a budget of $150-180ish. So nothing too expensive.

(not counting the power supply which max I would pay for that is $70) Oh, and yes I'm finally going to buy it this time. Also, for the graphics/video card it has to be something that will pretty much run just about every game with NO lag. I was thinking maybe the 700 series but, if there is a really good card in the 600 series I'm fine with that.
Computer SpecsProcessor: Intel i7-4770 CPU @ 3.40 GHz (btw it's eight cores)
Ram: 16 GB
64 bit
Graphics Card: Nvidia gtx 625 (don't ask how that somehow go my 300 fps LOL)
Power Supply: 350 W (pretty sure I will have to upgrade this as well)
Manufacturer: Asus
OS: Windows 8.1
Available Expansion Slots: 2 PCI, 1 PCI Express x16
Graphics/Video Cards I'm looking at (Keep in mind I'm on a budget of around $150-180ish for this)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814487028 (damnit out of stock now.)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127783 (not sure why this are going out of stock so quickly, but they might get more by the time I make my decision anyways. XD)
http://www.amazon.com/MSI-OC-PCI-Express-N750TI-2GD5/dp/B00I6DLIB8/ref=sr_1_15?s=pc&ie=UTF8&qid=1394248251&sr=1-15 (yes, this is a little of my budget but I can take out $20 out of the bank, I'd prefer not to, but this just looks like a good card. lol)
Power Supply (Only if I have to upgrade)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171083-----------------------------------------------------------------------------------
Alright, that's my list on what I think would work... but not really sure on how good it would work with my PC. (which is why I made this topic.)