I've just ordered my first DSLR and thanks to everyone on this site, I was able to make some good, informed choices about the camera and lenses that I needed to build a hobby in wildlife photography. Unfortunately, I'm now suffering newbie confusion about the gadgets/extras I'll need.

A monopod was recommended and a good rucksack seems like a no-brainer but when it comes to things like filters, monopod/tripod heads, battery grips and remote controls, ignorance and panic start to kick in. To start with, I've gone for a swivelling monopod head, UV filters for the telephoto and macro lenses and some extra memory but I'd love to know what other kit is essential or useful - and anything that really isn't.