Help For New Gaming Build for 650 - 800 Dollars

Hey guys. So I'm new to Tom's Hardware and I'm looking to build a custom rig. I have just gotten tired of my crappy Xbox 360 so I needed to upgrade. If you have any builds that would suit my needs I would appreciate it. Preferably, I would like a quieter computer because the computer is in my room. I don't think I need an SSD but if their really important I'll consider it. I would like it to play a variety of games such as Total War: Shogun 2, Total War: Rome 2(not out yet), The Elder Scrolls: Skyrim, Bioshock 1/2/Infinite, Mass Effect 1/2/3, Battfield 3, etc.) So mainly RTS, RPG, FPS, and maybe MMOs like SWTOR. Thanks!

Budget Range: 650-800 (i dont know what the sweet spot is for price/performance)

System Usage: Gaming, movies (like netflix), and perhaps some basic applications like google chrome and word

Parts Not Required: keyboard, mouse, monitor, speakers

I might overclock but I dont know how so im not sure

Monitor Resolution: Dell Ultrasharp 24 inches 1920x1080

I would also like a Blu Ray/DVD reader but if those are too expensive I'll pass on them.