Cpu
Gpu
^Not included in the budget.
Budget - $600
Purpose - Editing and gaming
I just need RAM, an HDD, an AM3+ motherboard, a case, and a monitor all for $600. I don't care about specific colors or manufacturers.
This build will have no problem maxing out games. Seems you're really concerned with saving money so go with this if you want.
Component/Product/Price + link to product
GPU- NVIDIA GeForce GTX 750 Ti $149.99
Chassis -SilverStone Sugo Series SG05B Mini ITX Case $79.99
CPU-Intel Core i3-3240 Ivy...
http://www.game-debate.com/gpu/index.php?gid=2187&gid2=2064&compare=geforce-gtx-750-gigabyte-oc-2gb-edition-vs-geforce-gtx-750-ti-msi-gaming-2gb-edition
Ti is faster. That card should be able to play Watchdogs on High/Ultra at a decent FPS, maybe in the forties.
Monitor and OS are personal preference
http://pcpartpicker.com/p/ddfpQ7
You can drop the 770 SLI and get a 780Ti, for the same price, it's up to you though.