^^ That one, if you prefer ATi cards.
EVGA 9800GTX+ $135AR
^^ This one, if you prefer nVidia cards.
Or just keep an eye out if you're patient, I picked up that 9800GTX+ last night with a different rebate & coupon code for $120AR. But I need nVidia cards for F@H, if you're into gaming the 4850 above is a better deal.