I traded a bunch of old games and DVDs at CEX the other day for this spangly boxed black DS. The DS is in very good condition- I chose the best one in the shop, good old CEX, and has just a few 1mm dings to the top edges of the unit. There's only one stylus and no manuals, but other than that it's in great condition, and has a 12 month guarantee dated from the 22/5/08.
Payment can be made via BT or paypal (with extra for fees) and the price is £75 inc special delivery postage. Collection from central Cardiff is also possible.