Here are the Best of ATI and Nvidia:
ATI:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202003&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
Nvidia:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125466&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
I would suggest going for the ATI cos of the extra 1 GDDR5 and the extra 128-bit (it will be noticable in future games)
Anyway you'll go youre gonna Enjoy