Still got my GF6800 GT here, 256mb, 8x AGP, never looked back at the time as it was the best bang fer yer buck at the time....the next time I do upgrade though, I will have to do a major overhaul as I'd need to replace most of my junk to work with a new PCI-E Mobo I'd have to buy, like you, just not worth it at this time to me, until it becomes more maintstream and cheaper.
Anyhow, if anything modern doesnt run smooth on my GF6800 GT without reason, then it's a badly coded game.
Anyhow, if anything modern doesnt run smooth on my GF6800 GT without reason, then it's a badly coded game.