Ati Agp Cards I Am Searching For An Old Agp Graphics Card For My System.I Prefer Nvidia 4,5,6 Series Cards Or Ati Equivalent?

I am searching for an old agp graphics card for my system.I prefer nvidia 4,5,6 series cards or ati equivalent? - ati agp cards

Looking for an AGP graphics card for my old System.IO 4,5,6-Series cards prefer NVIDIA or ATI equivalent cards.I have a port that has P4M266A MB AGP 4X. Are you one of these cards? Please give me your price.