The 750ti is a cheaper card, you can get them on sale for around $100. and should play some games, I was going to suggest to the OP that he can upgrade to a better card when is finances get better and he'll have everything ready for when he makes that choice. Even a 960 would put the OP over his budget by $50+
I am a bit confused.... One is required to acquire a laptop (work/play) and is now considering a desktop? Baffled.
I was saying that I need a computer that I can use for work and play. I don't have to have a laptop. That was my personal choice until I realized that I need more power that a laptop can provide. I may have confused some people.
Go to one of the non-corporate shops, where they can build one exactly for your needs. If you know what you want and need and they understand what they are doing, they can recommend the best parts for your needs. It is simple and will be cheaper too!