Budget graphics card question

I am in the market for a budget graphics card and power supply. Would like to stay under 250 for both. Here is the setup I bought for gaming...

Used Dell Optiplex Windows 10 pro
Intel I5, 3470 3.2ghz, 1TB hard drive 8gb memory.

I only have 1 game right now and these are the requirements...

OS: Windows® 7 64bit / 8 64bit.
Processor: Quad-Core 3.5 Ghz.
Memory: 8 GB RAM.
Graphics: Graphics Card with 2 GB Video RAM: Nvidia Geforce GTX 750 or equivalent.
DirectX: Version 11.
Network: Broadband Internet connection.
Storage: 20 GB available space.

I was looking at This Card and This power supply. I can get both local and if possible I'd prefer that over ordering online due to ease of returns. I am not opposed to ordering something different if there is a better bang for my buck out there.

Will these both work in the PC I have now ? I know they are overkill for the only game I have now but was thinking I may try more in the future. I currently have a 1gb card and game is choppy. Any help or suggestions would be appreciated. I also plan to upgrade RAM and maybe an SSD hard drive in the future as funds allow so any suggestions there are also welcome. I'm not a heavy gamer, no need for perfect graphics just want the game to run smoothly on basic settings.