I have an IGo charger and it will work for both. It was recommended on the thread that talks about all the chargers. I got mine last week and it is working well. Walmart carries it here although I got mine through the website.
I have this one:
http://www.igo.com/mobile-device-cha...t/ps002730001/
This will work too:
http://www.igo.com/mobile-device-cha...t/ps002540008/