I'm all for aesthetics, but does it really matter what your charger looks like? I purchased the charger for the 700 from Sony and it works great. I like that fact that it controls the charge going into the unit from the power source(the reason for the adaptor) and I even plug the charger into a surge protector for extra security. As much as my family spent on my reader, I don't want to take any chances using something that could cause problems. Good luck with your new reader!
Kaz