Ti 4600, the card that is known to be a threat to the FX series so nVidia stop the production of it:
http://www.arsenalpc.com/Details.asp?ItemID=2952&Res=2
Visiontek Ti 4600:
http://www.shentech.com/vixtnvgeti12.html
Chaintech Ti 4200 looks nice too:
http://www.arsenalpc.com/Details.asp?ItemID=2453&Res=2
http://www.arsenalpc.com/Details.asp?ItemID=2952&Res=2
Visiontek Ti 4600:
http://www.shentech.com/vixtnvgeti12.html
Chaintech Ti 4200 looks nice too:
http://www.arsenalpc.com/Details.asp?ItemID=2453&Res=2