I have a HD3870x2 (dual GPU crossfire model) sitting in a box here. ;-)The actual top AGP cards are getting pricey now too:
Radeon 3870 AGP (only ES)
Radeon 3850 AGP
Radeon 4670 AGP
Technically the 3850 AGP is more powerful, but you'll be CPU bottlenecked on the majority of AGP systems.
Nice FAKE 5800 "Ultra":
Link on Ebay
What I see: PCB from Quadro FX2000, backplate from Quadro FX2000, RAM radiators on the front side from MSI FX5600 Ultra, GPU cooler from ABIT FX5600 Ultra. I bet heat sink on GPU also has Quadro FX2000 marking, so it's FAKE card made from three other cards flashed by FX5800 Ultra BIOS. And somebody is going to spend over $800 on this)))
Problem with that is that you have to come up with the Quadro card version of it which generally is not very cheap anymore.Apparently I need to start making some Quadro fake 5800U special editions. Great ROI.
Attach a toy Husqvarna leaf blower to it! :-PI have about 25 of the Quadro FX2000's that are being scrapped in a few months at work. But yea, the coolers would be difficult to emulate. But it doesn't need to be that close of a match according to the previous auction sale. lol