http://www.amazon.com/gp/product/B0014DYJBI/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A1X1PAXLARJIUF
I've seen some listings (particularly on Ebay) for this one that looked pretty shady. Does anyone have experience with this buyer?
Or with a different dock?
I googled "DS Charge Stand Hori" and an Amazon seller came up. The thing also has pretty good reviews there, and it's not too expensive!
http://www.amazon.com/Nintendo-DS-Lite-Charge-Stand/dp/B0014DYJBI