Looking for a gaming gpu. Need advice urgently!

[Slashbane]

Purchase Date: In a 2 weeks.
Budget Range: USD $100-$250
Will be gaming. Games I will mostly be playing: Ac3, Black Ops 2, Minecraft, Skyrim, tf2.
Making a new computer so I dont have a gpu currently. Power Supply: http://www.amazon.com/gp/product/B003PJ6QWE/ref=ox_sc_sfl_title_9?ie=UTF8&smid=ATVPDKIKX0DER
CPU: Intel i5 3570k Motherboard: http://www.amazon.com/gp/product/B007G51UWY/ref=ox_sc_sfl_title_6?ie=UTF8&smid=ATVPDKIKX0DER
It can be from any website it doesnt really matter. No real parts preference.
Overclocking: maybe Crossfire or SLI: Maybe
Monitor: http://www.amazon.com/ViewSonic-VX2250WM-LED-21-5-Inch-Widescreen-Integrated/dp/B003HFCDLY/ref=sr_1_3?ie=UTF8&qid=1356467336&sr=8-3&keywords=Computer+monitor+flat+screen+40+inch
Not really considering any GPU's yet.
Thanks,
Slashbane

 

[antonisrsx]

hd7870 Asus/Msi/Sapphire

 

[AMD Radeon]

^+1

but you need to watch 7950 prices, sometimes it can be bought as low as 240ish on sale
current lowest price is $274.99 from sapphire

 

[djangoringo]

Ac3, Black Ops 2, Minecraft, Skyrim, tf2.
^

Get a 660 gtx(or a 660ti if possible), for those games nvidia cards performs much better.