Looking for some help on building a pc that can run lspdfr. Looking between 600-800. Any help is appreciated. 

Well, if you can find a GTX 970 and an i5 4690k for a decent price, then I'd say grab them. That is what my PC has and I run LSPDFR and GTA 5 on very high settings at 60fps.

Do you need peripherals (monitor, mouse, keyboard) as well as an OS, too?

Yes I need the monitor, keyboard and mouse. I have Windows 7.

i second that the best graphics card to get for the price and performance is the gtx 970 then a decent processor you should be well on your way to a nice gaming rig good luck on bargain shopping its the hardest part of building a pc lol

Check out /r/buildapc, they're really helpful for people new to building their own PC. Subscribe to /r/buildapcsales too and wait until the GTX-970 or R9-390 comes on sale. 

http://pcpartpicker.com/p/83NpXL 

This is the best I can do for now. You might be able to get a cheaper GPU, like an R9 280x. That will perform just as well, if not better, but they are usually a little bit cheaper than the 960. You can also get a cheaper case and monitor to lighten the price. You might also be able to get a cheaper power supply, but be aware that your PSU is one of the most important components, so you want to do your best to not cheap-out on that.

Is it worth it to get the I-5 4690 over the 4460? And the GTX 970 over the 960? If my budget went up. 

Edited December 28, 201510 yr by Mattg408

22 hours ago, theninja35 said:

http://pcpartpicker.com/p/83NpXL

Only change I would make to that would be a 4GB GTX 960.

6 hours ago, Mattg408 said:

Is it worth it to get the I-5 4690 over the 4460? And the GTX 970 over the 960? If my budget went up. 

Both processors are pretty much equally matched, as long as your not talking about the 4690K, with overclocks.