I have been thinking that too. I found a dock on eBay that looks good but it doesn't have a cable, so you have to buy your own and plug it into the dock. I could use the one that comes with it but I plan to use the dock next to my bed to charge at night so any cheap old wall charger that will charge the phone within the 7-8 hours that I am asleep.
Ebay... I bought from this seller. Of course, it's from HongKong so it took about 9 days to get to me, pretty fast considering. You can choose USA only and pay a little more to get it from other vendors a little faster.