I am planning to go almost all lipo power. I know I am going to buy the Yeah Racing 7.4v 3200 packs, but I need help finding a good charger that is also cheap (under $100). Does balancing a lipo matter? Some people say it doesn't but does the batteries performance change?

Does anyone know if the DynamiteRc AC/DC LiPo Charger or the DuraTrax Onyx 230 is any good or which one is better?