NEX 6 must-have accessories

Nothing but a few spare batteries and experience with the camera. An accessory hunter and his/her cash are soon parted with junk sitting on the shelf.

This being your first serious camera (as you say), just get serious about your pics, no filters etc etc will help you learn photography but the camera itself can. And in a few months you might want to get a tripod, a remote for good night shots or a macro lens for macros or ... and who knows what you want to use so do not wast your money in advance to get EVERYTHING now.

Otherwise you are just showing your insecurities about this commendable step into serious photography. You are safe just with that camera alone! Enjoy your journey.