The Twin Frozr is a bit better but if you don't care about the price just go for a HD 7870 instead.
I think this one should be within your budget.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131466&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=