I have an X1800XT 512MB for sale here. Bought it recently, but isn't as fast as I would like to run Oblivion completely maxed out. I haven't used it much since buying, only a little bit on Oblivion. It also has an Accelero X2 cooler which is very quiet and cools well.
Unfortunately I didn't receive a box or any accessories with the card. Just the card, CD and a molex to PCI-E power adapter. The card is in good condition and hasn't given me any problems.