Gaming PC build $700-1000 budget

[austenw23]

Building a computer with budget ranging from $750-1000. Need to know what graphics card to get for mid-high end gaming. I'll be using a monitor of around 20-24". Don't want to spend TOO much on the card obviously because my budget for the whole computer (including monitor,keyboard,mouse etc.) is only 700-1000. I guess I could actually use help with every component of the computer honestly. This will be my first time ever building my own computer and I have no understanding on how the the stuff works. If someone could please put together a list of everything to build a good gaming PC with a $700-1000 budget, that would help a lot thanks.

Games i'll most likely be playing:

-Runescape in max graphics (RPG Game)
-Minecraft
-League of Legends
-MAYBE Call of Duty, probably not


Keep in mind not to use up all the $1000 budget, I need money left over for monitor and accessories.

 

[butremor]

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($149.99 @ Microcenter)
Motherboard: ASRock H77 Pro4/MVP ATX LGA1155 Motherboard ($87.55 @ Newegg)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($39.99 @ Microcenter)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ Microcenter)
Video Card: XFX Radeon HD 7870 GHz Edition 2GB Video Card ($231.98 @ Newegg)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($49.49 @ SuperBiiz)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($49.99 @ NCIX US)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($17.89 @ Outlet PC)
Optical Drive: Samsung SH-222BB/BEBE DVD/CD Writer ($37.77 @ Mac Connection)
Monitor: Zalman MZ240ED 24.0" Monitor ($148.98 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ Outlet PC)
Total: $1029.60
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-17 09:39 EST-0500)