b0wl :
radikulram :
USD? AUD? CAD? You need to specify the country, and how many monitors will you be using?
What games will you be playing? If FPS vs MMORPG's, I'll recommend different monitors (for a single monitor set up, and different ones for a 3 monitor set up etc)
Is electricity a concern? Are you willing to wait for new architectures, or do you need this pc now?
I think that covers the majority of it.
USD, Electricity is not a concern , mostly fps & one 144hz monitor
Okay, well what I did was I got one GTX 770, and only one. Because the next generation of GPU's, or atleast Nvidia's, are going to be a brand new architecture I'm planning on replacing the 770 as soon as the next Titan or GTX 880, or next new architecture AMD GPU comes out.
The 770 is basically a gtx 680, but slightly improved.
To benefit from full 144hz you'll need to run your games at 144 FPS, which a single GPU won't do for some games.
Since you want to run "every to most games on max" I'd recommend either 2 GTX 780's, or three GTX 770. Could you fit that into your budget? Well that depends on the case, HDD/SDD you buy etc.
If you're gonna run 2 780's or 3 770's you need a CPU that wont bottleneck that too.
OR you can wait for AMD's new GPU's, or consider their current ones . The best thing to do is to just look up benchmarks for all of the different GPU's.
P.S: US wall sockets don't output as much as EU ones, I think the average US one out puts 1,500 watts. IF your PC ends up topping that you'll need to use a second socket/wall bracket.