Best charger on the market hands down is the iCharger family. I have a 106B+ and 306B. Very easy to use, adjustable, and small. The same company that makes these also makes power supplies, again the smallest highest power output supplies you can buy and extremely affordable.
I did a lot of research before i decided on these and have not been disappointed. Several others I race with bought 106B+ and love them. There new charger, the 4010, has some serious power and will probably last you a lifetime.
Progressive RC and EP Buddy both sell these products. Price\performance is unmatched with these chargers and power supplies.