Best bang for the buck?

[binny45]

Been a couple of years since I built a machine and haven't been keeping up. Was just wondering what people are recommending these days as far as a good, powerful card for a decent price?

 

[Bluescreendeath]

$50 - 9600 GSO or 4670
$70 - 9600GT or 3870 (ebay)
$90 - 8800/9800GT or 4830
$110 - 4850 or 9800GTX/GTX+/GTS250
$130 - GTX260 192 or 4870 512mb
$160 - GTX260 216 or 4870 1GB
$190 - GTX275 or 4890
$260 - 5850 or two GTX260s Slied or two 4870s Xfired