nVidia 6600 GT AGP for below $100 at 3B Tech
While I'm personally an ATI guy myself, I have to pay obeisance to the raw power that was the nVidia 6600 GT in its time. This card was -- and for the AGP slot, still is -- one of the fastest cards that was ever produced. It was like a fire-breathing dragon, eating up any benchmark or performance test you could throw at it.
And now it could be yours, for below a hundred bucks. I can't even begin to imagine what it must've cost brand new back in the day.